What is the Germanium dioxide

Germanium dioxide, electronic type is the same as the carbon dioxide. White powder or colorless crystals. For the square crystal system, hexagonal system or amorphous body. Six-party crystallization and beta quartz isomorphism, germanium into four coordination; Sifang crystallization with super quartz type structure, similar to that of rutile, germanium is six coordination among them. Under high pressure, amorphous germanium dioxide into six ligand structure; As the pressure is reduced, germanium dioxide also gradually into four ligand structure. Class of germanium dioxide rutile type structure at high pressure can be transformed into another type of orthogonal series, calcium chloride structure. Germanium dioxide insoluble in water and hydrochloric acid, soluble in alkali liquor generated germanate. Class of germanium dioxide rutile type structure than the six-party germanium dioxide more soluble in water, it can produce germanium acid and water. Germanium and germanium dioxide powder at 1000 ° C hot, a germanium oxide can be obtained.

For making germanium, also used in the electronics industry. Used as a semiconductor material. By heating germanium oxide or germanium tetrachloride hydrolysis. Used for metal germanium and other germanium compounds of preparing raw materials, producing polyethylene terephthalate oxalic ester resin as catalyst and spectrum analysis, and semiconductor materials. Can produce optical glass fluorescent powder, can be used as catalyst used in oil extraction transformation, to hydrogen, the adjustment of the gasoline fractions, color film and polyester fiber production. Not only so, germanium dioxide or polymerization catalyst, glass containing germanium dioxide has high refractive index and dispersion performance, as a wide Angle lens camera and microscope, with the development of technology, germanium dioxide is widely used in the production of high purity metal germanium, germanium compounds, chemical catalysts and pharmaceutical industry, PET resin, electronic devices, etc., need to pay attention to is the shape of the germanium dioxide though and organic germanium (Ge - 132), but it has toxicity, not taking.