The effect of glycolic acid

Glycolic acid is the crystal of a colorless, deliquescence. Soluble in water, soluble in methanol, ethanol, ethyl acetate and other organic solvents, soluble in ethyl ether and not soluble in hydrocarbons. Both alcohol and acid have a duality that is heated to boiling point decomposition. For organic synthesis, etc. It is usually hydrolyzed by chloroacetic acid in alkaline conditions.

Action and purpose editing

1, chemical cleaning: glycolic acid solution is mainly used as detergent, 70% 2% of glycolic acid and 1% formic acid mixed acid is a kind of high efficiency, low cost of cleaning agents, can be used for air conditioning, boilers, power plant pipelines, condensers, heat exchangers and other major cleaning materials.

2, biodegradable materials, widely used in the preparation of the body preparetions slow-release drug system, preparetions repair equipment, biological absorption surgical sutures, materials for artificial bones and organs, etc., has a development prospect very much. Polylactic acid and polyglycolic acid have become the development focus of new materials.

3, fungicides, because of the special structure of glycolic acid containing hydroxyl and carboxyl, can be formed through coordination bond between the metallic cations hydrophilic chelate, therefore on iron oxidizing bacteria growth has obvious inhibitory effect, can be used as a disinfectant, can also be used in a variety of ore flotation inhibitor.

4, daily chemicals: 99% glycolic acid is a better curative effect to remove dead skin and hair potions, can synthesize resist skin aging, whitening cosmetics raw fruit acid, can achieve the effect of moisturizing, nourish skin, promote the skin update. Glycolic acid molecular weight is very small, it can penetrate the skin pores, effectively in a short period of time to solve the skin aging, wrinkles, spots, acne problems, therefore unanimous esteem by medical hairdressing industry.

5, plating surface treatment: glycolic acid can also be used in electroplating industry, glycolic acid sodium salt, potassium can be used as electroplating additives, also can be electroplated grinding, metal pickling, leather dyeing and tanning agents of green chemical raw materials. Glycolic acid is also a compound agent of chemical nickel plating, which has the advantages of corrosion resistance, quick reaction and good finish, which is the best preparation material for improving the quality of nickel plating.

In addition, glycolic acid can be used in the textile industry for the crosslinking agent of the wool fiber and cellulose fabric and the crosslinking agent of the carboxylic fiber fabric. It can also be used as adhesives, oil demulsifiers, welding agents and coatings, and various medicines, pesticides and chemical additives.

The use of pyrithione zinc

Pyridine thione zinc is a chemical that is c10h8n2o2sn, which is a kind of milky white water bulk and white powder.

Used for dandruff in shampoo, inhibit the growth of gram-positive, negative bacteria and mold. Can effectively nurse the hair, delay the ageing of the hair, control white hair and hair loss. It is also used as cosmetic preservative, oil agent and coating antibiotics. As a fungicide for products such as coating and plastic, it is also widely used.

What is the Gas phase silicon dioxide

Gas phase silicon dioxide, porous, non-toxic and odorless, high temperature resistant. At the same time, it has chemical inertness and special thixotropic performance significantly improve the tensile strength of rubber products, tear resistance and abrasion resistance, rubber modified strength improved dozens of times. Liquid systems, adhesives, polymers such as rheology and thixotropy control, used as anti-settling, thickening, prevent sagging of fertilizer, HCR and RTV - 2 k of the silicone rubber reinforcing, can be used to adjust the free flow and as an anti-caking agent to improve the powder properties and so on. Gas phase titanium dioxide, the gas phase alumina, mainly involving in the areas of application: adhesive, coating, paint, printing ink, batteries, toner, medicine, food, plastics, paper, cosmetics, silicone rubber, defoaming agent, composite materials, feed and other fields. Gas phase white carbon black is a white, non-toxic, odorless and amorphous inorganic fine chemical products. The atomic particle size is between 7 and 40 nanometers, the surface area is 70 ~ 400m/g, it has good reinforcement, thickening, thixotropic, anti-ultraviolet and sterilization etc.

The nickel oxide (Ⅱ) purposes

The nickel oxide (Ⅱ) nickel oxide for the green powder solids. Is a kind of common inorganic compounds, bivalent nickel oxide, chemical formula for NiO, green powder, widely used in life, is also used for preparing high purity (> 99.98% nickel). This product is harmful to human health, the need to take care of the protection when contacting, the risk that the human body may have carcinogenic to sensitization.

Use the editor

It is used as a enamel and colorant, ceramic and glass pigment. It is used in the production of magnetic materials to produce nickel-zinc ferrite, as well as to make nickel salt raw materials, nickel catalysts and applications in metallurgical and imaging tubes. It is used as electronic component material, catalyst, enamel coating and battery material. [2]

2, NiO can be used for the reduction of nickel to be obtained, but notice must not be under the condition of unprotected use CO reduction NiO, this is because Ni and CO in response to generate toxic volatile carbonyl nickel four Ni (CO) 4, it is difficult to detoxify, easy to produce risk.

The role of gadolinium oxide

Gadolinium is made from the purified steps such as a single stone or mixed rare earth mine, which is purified by extraction, and made from the mixture of the samadinium mixed rare earth solution. Using oxalic acid to precipitate gadolinium, it was separated, dried, burned and made from gadolinium oxide.

Used as yttrium aluminum and yig incorporation agent, medical apparatus and instruments of sensitized fluorescent materials, nuclear reactor control materials, the production system of raw materials, metal gadolinium magnetic bubble material and optical prism additives, etc.

How to making Sm2O3

Sm2O3 is a slightly yellowish white powder, body centred cubic or monoclinic. The chemical properties of rare earth oxides are similar, and samarium oxide is no exception, but its magnetic moments are different from other oxides, 1.45 M · B. The density of 8.347 g/cm3. Melting point is 2262 ℃. Insoluble in water, soluble in acid. It absorbs carbon dioxide and water in the air. It can absorb infrared ray glass additives, coating in photosensitive materials, and make samarium drill permanent magnet material and make metal samarium. The extraction of chlorinated rare earth solution obtained from the treatment of solitary stone or mixed rare earth minerals is obtained by extraction, anti-extraction, zinc powder reduction, and oxalic acid precipitation, separation and burning.

What is the Potassium fluoride

Potassium fluoride is a salt that is called potassium fluoride. White monoclinic crystal or crystalline powder. Taste salty. Easy to moisture absorption. Soluble in water, not soluble in ethanol. Its aqueous solution is alkaline and can corrode glass and porcelain. The relative density of 2.454. Melting point is 858 ℃. Medium toxicity, half of all deaths (rats, oral) 245mg/kg. Stimulating.

Soluble in water, soluble in hydrofluoric acid and liquid ammonia, soluble in alcohol and acetone. Aqueous solution is alkaline and can corrode glass and porcelain. When heated to sublimation temperature, it is only a little decomposed, but it is very active and can corrode the refractory. Hydrogen peroxide can be added to KF H2O2. There are two types of hydrate: KF, h2o, and KF. When less than 40.2 ℃, in aqueous solution can get dihydrate crystal (KF · 2 h2o), department of monoclinic crystal, 41 ℃ when the crystal soluble in water. Poisonous.

What is the Potassium dihydrogen phosphate

Potassium dihydrogen phosphate (chemical formula: KH2PO4) seal preservation, stability in the air, lose water at 400 ℃, into metaphosphate, used to make buffer, the determination of arsenic, antimony, phosphorus, aluminum, iron, and preparation of phosphorus standard solution, preparation of culture medium, the determination of serum inorganic phosphorus and alkaline phosphatase activity.

Main application:

Mix up the buffer. It measures arsenic, antimony, phosphorus, aluminum and iron. The standard liquid of phosphorus. The preparation culture medium. To measure the activity of inorganic phosphorus and alkaline phosphatase in serum.

Upstream raw materials: phosphate, dihydrogen phosphate, potassium chloride, potassium hydroxide, caustic soda, potassium carbonate and ammonium bicarbonate.

Downstream products: phytolepsin, gibberellin, su yunjin, and streptomycin sulphate.

What is the Potassium sulfate

Potassium sulfate (K2SO4) is a salt composed of sulphate ions and potassium ions, usually in colorless or white crystals, particles or powders. Odorless, bitter. Qualitative hard. The chemistry is not lively. It's stable in the air. The density of 2.66 g/cm3. Melting point is 1069 ℃. The aqueous solution is neutral, with a temperature of about 7. 1g is soluble in 8.3 ml water, 4ml boiling water, 75ml glycerin, not soluble in ethanol.

The main purpose is the serum protein biochemical test, the keratine nitrogen catalyst, the preparation of other potassium salt, fertilizer, medicine, preparation glass, alum and so on.

The role of lacoamide

Lacoramide is a medical device for treating epilepsy and neuropathic pain.

Action: drugs for epilepsy and neuropathic pain.

Lacoamide is a new type of antiepileptic drug, a new type of n-methyl-d-aspartic acid (NMDA) receptor glycine site binding antagonist. NMDA receptor glycine site is a new type of functional amino acid, which is a new type of functional amino acid. It can selectively promote the sodium channel inactivation and slow adjustment collapse response mediated protein 22 (CRMP22), and CRMP22 may slow or even prevent seizures and relieve diabetic neuropathic pain.

The use of mycophenol

Mycophenolic acid, also known as Michael phenolic acids, the E - 4 - methyl - 6 - (1, 3 - dihydro - 7 - methyl - 4 - hydroxy - 6 - methoxy - 3 - oxygen generation of - 5 - coumarone) - 4 - hexene acid), chemical formula (formula) : C17H20O6, is a kind of milky white powder, soluble in methanol, ethanol, slightly soluble in ether, chloroform, soluble in benzene, toluene, almost insoluble in cold water, mycophenolate mofetil at home and abroad as the main immune inhibitors have been widely applied in the prevention and treatment of acute rejection of transplanted organs.

USES: a class of antibiotics/antibiotics derived from the Penicillium stoloniferum and similar strains. The synthesis of purine nucleotides can be blocked by inhibiting the subyellow [purine] acid dehydrogenase in the body. Block T cells, the division of lymphocytes and the formation of antibodies in b-cells as an immunosuppressive factor. In molecular biology, the cells used to screen the genes of the xanthine phosphine phosphine phosphates.

What is the furosemide

Cefuroxime Sammy also calls the furosemide, clinically used to treat cardiac edema, renal edema, liver cirrhosis ascites, dysfunction or vascular disorder caused by the surrounding edema, and can make the upper urinary tract calculi. Its diuretic effect is rapid and strong, and is applied to other severe cases of diuretics. It is not suitable for regular use because of the obvious reasons for the loss of water and electrolyte. Intravenous medicine (20 ~ 80mg) can treat pulmonary edema and cerebral edema. Drug intoxication can be used to accelerate the excretion of poisons.

Functional indications:

Edema: water that is caused by congestive heart failure, cirrhosis of the liver, and kidney disease

Furthrice injection

Furthrice injection

Is swollen. This product is an effective diuretic drug, which can be used in the clinical situation of diuresis in other diuretic drugs. It is available in adults, children and infants. The injection can be used in patients who cannot be taken orally or are in urgent need of diuresis.

High blood pressure: single use or other drugs. It may be valid when the thiazide is ineffective. But the ban is used for patients with no urine and allergic to the product.

Acute pulmonary edema or cerebral edema.

The hydrate is used to accelerate some of the renal elimination of poisons.

What is the Silicon carbide

Silicon carbide and silicon carbide (SiC) is using quartz sand and petroleum coke or coal tar, wood chips (green silicon carbide production need to add salt) such as raw material through high temperature electric resistance furnace smelting. There is also a rare mineral silicon carbide in nature, and the mo SangShi. Silicon carbide is also called the moissanite. In contemporary C, N, B the oxide refractory raw materials in the high technology, such as silicon carbide as the most widely used, one of the most economic, can be called corundum or refractory sand. At present China's industrial production of silicon carbide is divided into two black silicon carbide and green silicon carbide, are the six-party crystal, specific gravity is 3.20 ~ 3.20, the microhardness of 2840 ~ 3320 kg/was.

What is a nanometer titanium dioxide dispersion

What is a nanometer titanium dioxide dispersion? Xiamen is the introduction to it:

Nanometer titanium dioxide was applied to ceramics, plastics, coatings, cosmetics and other industries. Nanometer titanium dioxide dispersion are scattered my company adopts the international advanced technology, the nano titanium dioxide powder (5-30 nm) dispersed in aqueous medium, forming highly decentralized, homogenization and stabilization of the nanometer titanium dioxide aqueous slurry. Nano titanium dioxide dispersion has the property of nano powder materials, nano titanium dioxide dispersion has higher activity, easy to join.

The nanometer titanium dioxide dispersion played a role of nanomaterials greatly.

Can be many times dilution remains transparent and stable; Place remained for a long time in the water distribution state of monodisperse nanoparticles.

What is the Nanometer titanium dioxide

Nanometer titanium dioxide is white loose powder, uv shielding is strong, good dispersibility and weather resistance. Can be used in cosmetics, functional fiber, plastic, paint, paint, and other fields, as ultraviolet screening agent, prevent ultraviolet ray. Can also be used for high-grade car paint, varies with Angle different color effect.

Nanoscale titanium dioxide, also called titanium dioxide. Under 100 nanometers in diameter, product appearance for white loose powder. With line resistance, antibacterial, self-cleaning, anti-aging properties, can be used in cosmetics, functional fiber, plastics, printing ink, paint, paint, fine ceramics, etc.

Crystal morphology: there are two main types of nano titanium dioxide sharp titanium type (Anatase and Rutile type (Rutile). Rutile type titanium dioxide than sharp titanium type titanium dioxide stable and compact, has high hardness, density, dielectric constants and refractive index, the covering power and tinting strength is higher also. And sharp titanium type titanium dioxide in shortwave part of the reflectivity of visible light is higher than the rutile type titanium dioxide, with blue color, and the ultraviolet absorption capacity is lower than the rutile type, photocatalytic activity is higher than the rutile type. Under certain conditions, sharp titanium type titanium dioxide can be converted into rutile type titanium dioxide.

What is the Calcium oxide

Calcium oxide, calcium oxide), is a kind of inorganic compounds, its chemical formula is CaO, the common name for quick lime. Physical properties is the surface of white powder, no pure as the gray, containing impurities with pale yellow or gray, with moisture absorption.

Calcium oxide as basic oxide, is sensitive to wet. Easy to absorb carbon dioxide from the air and water. React with water to produce the calcium hydroxide (Ca (OH) 2) and generate a large amount of heat, corrosive.

Calcium oxide in the air for a long time exposure can absorb carbon dioxide into powder, calcium carbonate, no clear pond of disinfection effect. So, had better use now buy now quick lime, and choose to block is lighter, does not contain the impurities as well. If a exhaustless remaining lime mouth sealed plastic bags.

The development of zno

Zno is a kind of zinc oxide. Poorly soluble in water, soluble in acid and alkali. Zno is a kind of common chemical additives, widely used in plastic, Portland products, synthetic rubber, lubricating oil, paint coating, ointment, adhesives, food, battery, flame retardants, and other products. Zinc oxide of the band gap and the exciton binding energy is larger, high transparency, has excellent luminescent properties under normal temperature, liquid crystal displays, in the field of semiconductor thin film transistor, light-emitting diodes, and other products are used. In addition, the micro particles of zinc oxide as a kind of nano material are also beginning to play a role in the related field.

Zinc oxide production factory mainly concentrated in liaoning (dalian), shandong (weifang), hebei (zhonghan, xingtai), jiangsu, zhejiang and other places, the production of zinc oxide with 99.7% content is given priority to, commonly known as 997 (99.7) zinc oxide. In recent years, nanometer zinc oxide with its excellent characteristics, the rapid growth of the application field is becoming more and more widely.

Yttrium oxide - chemical properties and USES

The chemical formula which best characterizes the Yttrium - oxide Y2O3, white with a yellow powder, insoluble in water and alkali, soluble in acid. Mainly used for manufacture of microwave with magnetic materials and military industry with important material (single crystal; zhe yttrium iron garnet, zhe yttrium aluminum garnet and other composite oxide), also used as optical glass, ceramic material additives, a giant TV screen, with high brightness tube fluorescent powder and other coatings, etc.

Yttrium oxide - mainly used for manufacture of microwave with magnetic materials and military industry with important material (single crystal; zhe Yttrium iron garnet, zhe Yttrium aluminum garnet and other composite oxide), also used as optical glass, ceramic material additives, a giant TV screen, with high brightness tube fluorescent powder and other coatings. Also used in the manufacture of film capacitors and special refractories, and high pressure mercury lamp, laser, storage element such as bubble material. Sinter adding yttrium oxide can effectively reduce the grain size of tungsten alloy.

The role of lithium sulfate

Lithium sulfate, colorless monoclinic crystal or white crystalline powder, soluble in water, insoluble in acetone and ethanol. 25 degrees of water solubility was 25.7%. Alpha, beta, gamma three crystal forms. Alpha model for white monoclinic crystal, beta type as the six-party crystallization, gamma type for cubic crystal. Has the water absorbability. By a lithium sulfate hydrate to crystallize in concentrated aqueous solution is very stable. Have the effect of the treatment of manic depressive psychosis.

Lithium salt can inhibit norepinephrine and dopaminergic nerve endings transmitter release, increase of transmitters reuptake presynaptic membrane, and lower the postsynaptic membrane receptor sensitivity, so as to relieve symptoms. In addition, it also can promote the synthesis of 5 - HT, increase the brain 5 - HT and its metabolites, make the neurotransmitter in the brain to balance. This helps to eliminate the symptoms of affective psychosis, and help prevent recurrence. These changes, may be caused by lithium some electrolytes in the body (calcium, potassium, magnesium) cells inside and outside the change of the distribution, influence the permeability of the neural cells, and the change of the synaptic function.

What is the Manganese sulfate

Manganese sulfate (chemical formula MnSO4, 151.00), the first hydrate for reddish rhombic crystal, relative density 3.50, melting point is 700 ℃, soluble in water, insoluble in ethanol. It exists in the form of a variety of hydrate.

Manganese sulfate at 850 ℃ starts to break down, because of different levels, heat can be released SO3 and SO2 or oxygen, residue with manganese dioxide or four oxidation three manganese. The crystallization of manganese sulfate hydrate when heated to 280 ℃, can lose their own water of crystallization and become anhydride. [1]

Manganese sulfate is synthetic fatty acid plant need to trace elements, so the manganese sulfate as fertilizer into the soil, to increase production. Manganese sulfate added to animal feed, have the effect of fattening. Manganese sulfate is the preparation of manganese salt raw materials and other analytical reagent. In electrolytic manganese, dyestuff, papermaking and ceramics are used in industrial production of manganese sulfate.

Because of easy deliquescence, suitable scope is limited. Manganese sulfate non-combustible, stimulative. Inhalation, ingestion or percutaneous absorption of harmful, stimulative effect. Inhale dust the goods for a long time, can cause chronic manganese poisoning, the early is given priority to with neurasthenia syndrome and neural dysfunction, parkinsonism syndrome in late. Have harm to the environment, the water can cause pollution.

What is the Mercury bromide

Mercury bromide is white crystalls or crystal powder. Light sensitive. Easy to decompose. Can be sublimated. 200 soluble in cold water and 25 copies of boiling water, soluble in hot ethanol, methanol, hydrochloric acid, hydrobromic acid and sodium bromide solution. Slightly soluble in chloroform. Relative density 6.05. Melting point is 237 ℃. The boiling point of 322 ℃. Poisonous. Stimulating.

Mercury ions can make containing sulphur loss of enzyme activity, loss of function, also with amino, thiol, carboxyl, hydroxyl and phosphoryl combination within the cell membrane, the corresponding damage caused. Acute poisoning: have a headache, dizziness, fatigue, insomnia, much dream, stomatitis, systemic symptoms such as fever. There can be loss of appetite, nausea, abdominal pain, diarrhea, etc. Skin appears red maculopapule nutrient patients. Renal damage can occur. Chronic poisoning: neurasthenia syndrome, excitable; Spiritual mood disorders, such as timid and shy, angry, crying; Toxicity of urine tremor; Stomatitis, can have renal damage.

What is the Baclofen

Baclofen Chinese alias and chlorophenol, BeiKangFen, becquerel Finn, lines and road, the road, chlorobenzene ammonia butyric acid, butyric acid chlorobenzene ammonia, and buck (gamma-aminobutyric acid analogues), for skeletal muscle relaxants. Mechanism is still unknown, may interfere with the excitatory neurotransmitter release, inhibition of synaptic transmission between the spinal cord. Baclofen activating GABA receptor beta, the lower spinal cord or polysynaptic reflex potential single synapses between and after spinal cord after root and root reflex potential, skeletal muscle relaxation effect, since the 70 s, has been widely used abroad in patients with spinal cord injury cramp, domestic use of these drugs have not been reported that this medicine has been the ministry of health license of the drug administration department agreed to the drug used in clinical.

Used to improve the pyramidal tract damage increased muscle tone of spasm symptoms, different causes of spastic hemiplegia and paraplegia, such as multiple sclerosis, cerebrovascular disease, spinal cord injury and myelitis sequela, children's cerebral palsy, tetanus, intractable hiccups; Improve Duchenne muscular dystrophy of duodenal obstruction in patients with recurrent vomiting; Ease the trigeminal neuralgia, neuralgia after herpes zoster, improve extrapyramidal after damage caused by myotonia such as Parkinson's disease, tardive dyskinesia, and Huntington chorea mild improvement. Reducing residual urine in patients with paraplegia after intravenous injection.

What is the Amisulpride-Acid

Amisulpride-Acid is white. Non-volatile. No moisture absorption. The density of 2.16. Melting point 205 ℃ (starts to break down). Soluble in water, slightly soluble or insoluble in organic solvents. Ionized in aqueous solution, and moderate acidity. Most of the metal salt is soluble in water. Stable at room temperature. In the high temperature decomposition. Dry stability, hydrolysis into ammonium hydrogen sulfate in aqueous solution. Also used as a herbicide, fire retardant, paper and textile softener, metal cleaners, etc. By urea and fuming sulfuric acid or chlorosulfonic acid. Amino sulfonic acid calcium is used to control wheat rust, etc.

The role of zanamivir

Preclinical pharmacology, pharmacokinetics, pharmacokinetic and early clinical research clearly shows that, as A new antiviral zanamivir, for the prevention and treatment of influenza A virus infection has the potential, according to the pharmacokinetic characteristics, zanamivir is suitable for every day, and it has good efficacy and safety.

Zanamivir, codenamed GG167 (former code GR - 121167 - x). Its CAS: 139110-80-8, is an effective flu virus sialic acid inhibitor, used for the prevention and treatment of influenza.

Zanamivir through inhibition of influenza virus neuraminidase, which changes the flu virus in the infected cells aggregation and release. In vitro experiment found that when the drug concentration increasing, there is still a flu virus sensitivity to zanamivir. Through analysis, it has to do with virus neuraminidase caused by mutation and blood agglutinin two or one amino acid change.

The main effect of potassium chloride

Potassium chloride chemical formula for KCl, slender is a colorless diamond or a cubic crystal or white crystalline powder, small particles look like salt, odourless, taste salty. Often used in low sodium salt, mineral water additives. Potassium chloride is medicine of clinical commonly used electrolyte balance adjustment, the clinical curative effect, widely used in clinical departments.

The main purpose

Mainly used for inorganic industry, also is to make all sorts of potash or alkali, such as potassium hydroxide, potassium sulphate, potassium nitrate, potassium chlorate and potassium chromate salt of basic raw materials. Pharmaceutical industry used as a diuretic and drugs for the prevention and control of potassium deficiency. Dye industry for the production of G salt, reactive dyes, etc. Agriculture is a kind of potash. , its quick fertilizer effect of direct application in the fields, which can make the soil moisture, have the effect of the drought. But in the saline-alkali land and the crops of tobacco, sweet potato, sugar beet, unfavorable use. Potassium chloride is similar to sodium chloride (bitter), also used as additive of low sodium salt or mineral water. In addition, also used in the manufacture of the muzzle or the muzzle flame agent, steel heat treatment, and for taking pictures. It can also be used for medical and scientific applications, food processing, salt can also be in part to replace sodium chloride with potassium chloride, inside in order to reduce the possibility of high blood pressure.

clinical

Potassium chloride is medicine of clinical commonly used electrolyte balance adjustment, the clinical curative effect, widely used in clinical departments. Used for the treatment and prevention of a variety of reasons (hypoalimentation, severe vomiting, diarrhea, row k diuretic or long-term application of glucocorticoid FSH and adrenal cortex stimulant, potassium loss, kidney disease, Bartter syndrome, etc.) caused by hypokalemia, can also be used in the heart, kidney edema and cardiac glycoside such as digitalis poisoning caused by frequent sex, multiple source sex premature beat or rapid arrhythmia.

The purpose of the potassium nitrate

Potassium nitrate in agricultural market application is very extensive, belongs to the binary compound fertilizer potassium nitrate. Is no potassium chloride, potassium nitrate nitrogen compound fertilizer, plant nutrient potassium, total nitrogen content can be up to 50%, has the good physical and chemical properties. Potassium nitrate fertilizer applied in tobacco has a high, easy to absorb, promote seedling early hair, increase yield of tobacco, and plays an important role to improve the quality of tobacco. Can react with hydrochloric acid

Application field

1, used as analytical reagent and oxidant, and also the explosive used in the synthesis and preparation of potassium salts.

2, used as a hair color agent in food industry, stabilizer.color-protecting, antimicrobial agents, preservatives, such as for bacon, anti-corrosion effect in the luncheon meat.

3, is to make black powder, such as mining powder, firing, fireworks and other raw materials. Also used in fireworks to produce purple spark. Machinery for quenching salt bath heat treatment. Ceramic industry used in the manufacture of ceramic glaze and medicine. Used as a glass clarifier. Used in the manufacture of automobile lamp glass shell, optical glass kinescope glass shell, etc. Pharmaceutical industry for the production of penicillin potassium, rifampicin and equality. For making cigarette paper. Used as a catalyst. Dressing agent. Compound fertilizer for crops and flowers.

4, potassium nitrate is allowed to use the hair color agent in China. It due to bacterial action in meat back into potassium nitrite and protect color and bacteriostatic effect. Rules can be used in meat products in China, the largest use of 0.5 g/kg, residual amount must not exceed 0.03 g/kg.

5, used in the manufacture of fireworks, matches, ceramic glaze, fertilizer, etc.

6, industrial potassium nitrate is widely used in glass production process.

The purpose of the potassium dihydrogen phosphate

Potassium dihydrogen phosphate (chemical formula: KH2PO4) seal preservation, stability in the air, lose water at 400 ℃, into metaphosphate, used to make buffer, the determination of arsenic, antimony, phosphorus, aluminum, iron, and preparation of phosphorus standard solution, preparation of culture medium, the determination of serum inorganic phosphorus and alkaline phosphatase activity.

The main purpose

Preparation buffer. The determination of arsenic, antimony, phosphorus, aluminum and iron. Employ phosphorus standard fluid. Mixed culture medium. Determination of serum inorganic phosphorus and alkaline phosphatase activity.

The upstream raw materials: phosphoric acid, sodium dihydrogen phosphate, potassium chloride, potassium hydroxide, caustic soda, potash, ammonium bicarbonate.

Downstream products: plant treasure grain, gibberellin, bacillus thuringiensis, streptomycin sulfate.

The application of Chymosin

Chymosin is an earliest before weaning calf aspartic protease, found in the stomach can be single-mindedly cutting kappa - predominate in milk casein peptide bond between Phe105 - Met106, destroy the casein micelle curdled milk, rennet curds and protein hydrolysis ability makes it formed in the cheese production structure and special flavor of key enzymes, has been widely used in the production of cheese and yogurt.

Chymosin has three states: liquid, powder and tablets. Traditionally calf rennet enzymes of the stomach 4 is utilized to extract make rennet, as the research progress of rennet, its source in the constantly expanding, existing classification includes three types: animal rennet, from cow stomach, pigs and sheep's stomach; Vegetable rennet, fluid is derived from the FIG tree and pineapple fruit; Microbial rennet, from mold and yeast. Danish cheese production source in the mould of rennet used widely

The effect of aspirin

Aspirin is a kind of has a long history of antipyretic analgesics, born on March 6, 1899. The earliest used antipyretic analgesic, now many diseases to prevent blood clots, aspirin has certain side effects.

Other USES:

Use a: antipyretic analgesics for fever, pain and rheumatoid arthritis, etc.

Application USES two: is the earliest, the most popular and the most common antipyretic analgesics anti-rheumatism medicine. Have antipyretic and analgesic, anti-inflammatory, rheumatism and antiplatelet aggregation in aspects of pharmacological effects, develop rapidly, efficacy, overdosage and easy to diagnosis and treatment, rare allergic reactions. Are often used to catch a cold fever, headache, neuralgia, joint pain, muscle pain, rheumatic fever, acute wet sex arthritis, rheumatoid arthritis and toothache. Is the catalog of national essential drugs included in the varieties. Acetyl salicylic acid and other drug intermediates.

The role of Emtricitabine

Emtricitabine is by American Gilead Siences company successfully developed a new type of nuclear nucleoside reverse transcriptase inhibitors, antiviral drugs, on HIV, HIV - 1-2 and has antiviral activity, HBV antiviral activity in its specificity to HIV - 1, 2 and HBV, HIV - and its drug concentration to mnol 100 / L, also did not see it on HSV - 1, 2, HCMV, VZV HSV -, corona, yellow fever virus, respiratory syncytial virus, Rota, or nasal influenza virus virus activity. Even lower than the molar concentration, the drug also showed the LAV and Ⅲ B strains of HIV 1 and HIV - 2 ROD2 and potent inhibition of ZY strains, the IC50 alue concentration is lower than AZT (zidovudine) 95 times.

Emtricitabine associated with other antiretroviral drugs for the treatment of adults infected with HIV - 1.

Emtricitabine does not affect liver microsomal enzyme P450 enzyme system, do not produce the mediated drug interactions, and tenofovir fluorine wei, indene to the temple, pan yesterday, respectively.there company, share, pharmacokinetic almost had no effect.

The application of nano powder category

Nano magnesium oxide is white powder, non-toxic, tasteless, product particle size small, large specific surface area. Material is different from ontology of optical, electrical, magnetic and chemical properties, high hardness, high purity and high melting point.

Nano magnesium oxide in the electronic, catalytic, ceramic, oil, paint and other fields have a wide range of applications.

1, chemical fiber, plastic industry with flame retardant;

2, silicon steel sheet production in high temperature water, advanced ceramic materials, electronics materials, chemical raw materials in binder and additive;

3 high frequency magnetic bar antenna, radio industry packing, insulation materials, magnetic device filler, and various kinds of carrier;

4, refractory fibre and refractories, magnesite chrome brick, heat resistant coatings with packing, high temperature resistance, insulation resistance meter, electricity, cable, optical materials, and steel;

5, electrical insulation materials, manufacturing crucible, crucible, insulation tube (tube top), electrode bar and electrode plate.

Application field of nanometer titanium dioxide

Nanometer titanium dioxide is white loose powder, uv shielding is strong, good dispersibility and weather resistance. Can be used in cosmetics, functional fiber, plastic, paint, paint, and other fields, as ultraviolet screening agent, prevent ultraviolet ray. Can also be used for high-grade car paint, varies with Angle different color effect.

The optical properties of the nanometer TiO2 is very precious, in the field of automotive industry and many are showing good prospects for development. Nanometer TiO2 also has the very high chemical stability, thermal stability, non-toxic, super hydrophilic, mobility, and can fully contact with the food, so they are widely used in ultraviolet resistant materials, textiles, light catalytic catalyst, self-cleaning glass, sunscreen, coating, printing ink, food packaging materials, paper industry, aerospace industry, lithium battery.

Applications of antibacterial powder

Antibacterial powder is appearance White powder, ingredient Silver compound nanometer rare earth oxides Silver compound nanometer titanium silver compound nanometer silicon silver ionic inorganic composite antimicrobial, broad-spectrum sterilization, non-toxic safety function and role, and it is through the antibacterial interaction between metal ions and reactive oxygen species, reach the role of slow-release sterilization, disinfection, they can be used to produce all kinds of antibacterial coating, plastic, ceramic, and fiber.

Antibacterial powder application area:

1, plastic, household appliances and daily necessities.

2, ceramics, building ceramics, glass wall brick, floor tile, sanitary facilities, bath and kitchen equipment.

3, textiles, medical tray, medical equipment.

4, fiber: underwear, jacket, socks, insoles, patients and surgical aseptic.

5, paper class: books, high-grade office paper, wrapping paper, toilet paper, napkins, sanitary napkin.

The role of silver powder paint

Silver powder paint is made of silver powder, aluminum powder, etc.) and thinner after mixing flow, usually for surface painting of the old buildings in the plumbing pipes.

Know the silver powder paint Silver aluminum powder, add it as a special pigments to paint, get the silver powder paint. Sometimes we talk about the metallic paint is refers to the silver powder paint. Due to its special flash effect, its status in the family car paint more and more important, accounting for the proportion of larger and larger.

The purpose of the silver powder paint

Applicable to heating equipment, vehicles, oil tank, the Eiffel Tower, metal pipes, metal surface corrosion, and the silver decoration of type object.

The purpose of the chrome

Chromium alloy is an important element. Chromium in the form of metal chromium and chromium iron in steel and alloy.

Silvery white metal, quality is very hard, resistant to corrosion. Density of 7.20 g/cm. Soluble in alkali solution. Chromium has the very high corrosion resistance, in the air, even in the red state, the oxidation is also slow. Does not dissolve in water. Plating on the metal can be protective.

Chromium for making stainless steel, auto parts, tools, tapes and video tapes, etc. Chromium plating on the metal rust, also called meters, strong and beautiful.

Chromium can be used for stainless steel. Red, turquoise color also comes from chrome. As modern science and technology is one of the most important metal, fusion with different percentage of nickel chrome steel, phyletic and various, unbelievable.

how to obtain high purity molybdenum powder

High purity molybdenum powder used for high voltage large current molybdenum wire of semiconductor devices, audio-visual equipment, camera parts and the target gate electrode material in high density of integrated circuit, etc. So how to obtain high purity molybdenum powder?

To the preparation of high purity molybdenum powder, you must first obtain the high pure molybdenum trioxide or high purity halide. To obtain high pure molybdenum trioxide process are:

Plasma physical vapor deposition method

With common air plasma treatment of molybdenum trioxide, molybdenum trioxide boiling point than most of the characteristics of low impurity, make its in air plasma flame volatilizes quickly, and bring a lot of cold air outside the plasma flame make gaseous molybdenum trioxide chilling, ultra pure molybdenum trioxide powders.

Ion exchange method,

Powder materials will be dissolved in polytetrafluoroethylene container water mixing, and then to the container at a speed of 1 L/h with concentration of 30% H2O2. The solution obtained by H cation exchanger, the solution is heated to 95 ℃ in the container, the suction pressure at about 25 Pa keep 5 hours, forming a precipitate after enrichment, is the high pure molybdenum trioxide.

Chemical purification method

Through recrystallization for many times, to obtain high purity ammonium molybdate, high pure molybdenum trioxide and calcination.

After winning high pure molybdenum trioxide, the traditional hydrogen reduction method and the plasma hydrogen reduction method can obtain high purity molybdenum powder. This several kinds of preparation technology are application, but the specific technical ideas and details are not public.

To obtain high purity halide process principle is: will industrial waste molybdenum oxide or molybdenum metal (such as sintered bar clamp scrap and waste molybdenum wire, molybdenum materials, etc.) get halide halide (generally for molybdenum pentachloride), and then under the condition of the high temperature of 550 ℃ or so fractionation of halogenated molybdenum processing, make the volatile impurities, get deep purification of halogenated molybdenum (allegedly purity can reach 5 N), at last, by hydrogen chloride hydrogen flame or plasma flame reduction, get high purity molybdenum powder.

The effect of superfine zinc powder

The superfine zinc powder is gray rules for globular crystal shape structure, density of 7.14 g/cm3, melting point is 419 ℃, boiling point is 907 ℃. Insoluble in water, soluble in acid and alkali, ammonia, have very strong reducibility. Stable in dry air, the wet air easy to agglomerate, and generate the alkali carbonate and the cover on the particle surface. The average particle size is between 3 to 4 um.

Superfine zinc powder products as the key part of zinc-rich anticorrosive coatings raw materials, widely used in inappropriate hot plating and electroplating of large steel components (such as a large outdoor steel structure building, Marine engineering, Bridges, pipelines, etc.) and coated in shipping, container, etc. Except for zinc-rich anticorrosive coating, zinc powder products are also used in screws, nails, nail and other steel products of mechanical galvanizing production. In addition, zinc powder product is widely used in chemical industry (such as insurance powder, lithopone, carved white block, dye intermediates, etc.), metallurgy, medicine, pesticide and other industries.

How can we get rb

How can we get rb? This problem could be a lot of people don't know, here is one way to get the rubidium:

Determining the solvent apple from material containing rubidium into pure rubidium chloride rubidium extraction method. Rubidium is soluble in water phase and organic phase between the competition process, the whole process in the box mixer-settler is complete. Rb from the cesium extraction residue extracted cesium) determining the solvent (see leather.

Cesium rubidium and cesium usually associated together, extraction separation and extraction of the rubidium must be considered. Extracting rb and cs solvent extraction separation method is developed in the 1960 s, it can separate complex mixture of alkali metal coexist, in many cases the score step precipitation rb cesium more quickly, with simple equipments, short process, easy to automatic control, the advantages of large quantity and safe operation, low cost, is considered to be a better separation and extraction of rubidium and cesium.

Technological process is mainly composed of extraction, washing, and the extraction of three basic steps.

Extraction of organic phase and water phase (cesium extraction residue) according to certain than 2 ~ 3 min contact extraction equilibrium. By extraction of rubidium from water phase to organic phase and two phase separation for clarification. Extraction compared with the composition of aqueous slurry, alkalinity, concentration, and concentration of organic phase. Organic phase concentration in a cesium and extraction under the same conditions, high water alkalinity (OH - 1.0 ~ 1.5 mol/L) extraction of rubidium more efficient; Greater than (o: a = 3 ~ 3.5) on extraction efficiency of rubidium is also higher.

Organic phase usually consists of leather take agent and diluent. BAMBP and t - BAMBP is the main extraction agent, rubidium their isomers, is a senior substitute phenol (ROH). Both the extraction properties of the rubidium close. Both extractant volatile small, small water soluble, the rubidium extraction performance is good, extraction selectivity is stronger, quick and easy to reverse extraction. Compared with BAMBP, t - BAMBP synthesis of high yield, low prices, China's existing goods, are used to from cesium extraction residue extraction rubidium ideal extractant. BAMBP and t - BAMBP on selectivity of rubidium extraction after cesium, which is better than that of potassium, sodium. Therefore, it is easy to in a counter-current mixer-settler extraction tank rubidium and separation of potassium and sodium.