Product Description
English name: zinc oxide
CAS number:
154-13-2
Chinese alias: children pigment white 4, Zinc oxide, Zinc oxygen powder, XinBai; Zinc powder, Zinc walter: The lead walter: Mother micelles ZNO - 80, Medicine glue ZNO - 80, Surfactant ZNO, Chinese white, XinBai silver, Active zno, A zinc oxide, XinBai silver, Namiyanghuaxin, Water smelting, T304 desulfurizer, T303 desulfurizer,
English name: Zinc oxide
English, alias: Children 77947; Children Pigment white.on 4, Zinc oxide [USAN]; Zincoxideheavy; 6 of zinc, Zinc white.on; Zinc oxide, edible, The active zinc oxide, Zinkoxyd aktiv; Zinci oxidum; Activox; Activox b, Actox14; Zine oxide, Zine white.on; Zincoxide; Actox16; Actox216; 00277; ai3 - Zincbar85; akro - Zincbar90; akro - Amalox; Azo22; 33; azo - Azo - 55, 55tt; azo - Azo - 66; 66tt; azo - ZNO
EINECS number: 215-222-5
Formula: ZnO
Molecular weight: 81.39
InChI: InChI = 1 / O.Z n/rOZn/c1-2
Density: 5.6
Melting point: ℃ 1975
Water-soluble: 1.6 mg/L (29 ℃)
Chemical properties:
Characters white hexagonal system crystallization or powder. Tasteless, mass and exquisite. Melting point ℃ relative density 5.606 refractive index in 1975 2.008 ~ 2.029 solubility soluble in acid, sodium hydroxide, chloride, insoluble in water, ethanol and ammonia water. Production method by carbonate zinc calcination. By hydrogen zno calcined and get. Zinc smelting from coarse to zinc, then through high heat air oxidation and into. By melting zinc oxide. Production method is currently the methods adopted by the zinc ingots raw indirect method (also says that complies with zinc ore), as the raw direct method (also called American law) and a wet 3 kinds. The indirect method. Response equation: 2ZnO + O2-2ZnO operation method: electrolytic preparaed zinc ingots heating to 600 ~ 700 ℃ melting, placed in high temperature resistant crucible inside, make 1250 ~ 13 ℃ under high temperature melting gasification, inducts the hot air for oxidation, generated by cooling, zinc oxide whirlwind separation, fine particles with bag capture, namely made zno products. The direct method. Response equation: C + + C O2 - CO2 CO2 ZnO + CO - furnace-rough CO Zn (steam) + CO2 Zn (steam) + CO + + CO2 O2 - ZnO operating methods: will roasting containing zinc smelting powder (or material) and anthracite (or coke sad), limestone press one-nil. Hot.05 proportion made into the ball. 1300 ℃ reduction of smelting, kuangfen of zno by reductive into zinc steam and recanalization into the air for oxidation, zinc oxide generated by capture alkalization zno products. Wet. Zinc-base ash and sulfuric acid reacts zinc sulfate, combine it with sodium carbonate and ammonia reaction respectively, with system of carbonate zinc oxide as raw material and hydrogen making zinc oxide. Response equation is as follows: ZnSO4 Zn + + H2 H2SO4 - ↑ ZnSO4 + Na2CO3 - ZnCO3 + Na2SO4 ZnSO4 + 2NH3 · H2O - Zn (OH) 2 + (NH4) 2SO4 in carbonate zinc as raw material, after washing, drying, calcining, crushing system product zinc oxide. ZnCO2 - ZnO + CO2 ↑ with hydrogen zinc oxide as raw material by the washing precipitation, dry, calcining, cooling, crushing to product zinc oxide. Zn (OH) 2 - ZnO + H2O production methods current approaches to zinc ingots raw indirect method (also says that complies with zinc ore), as the raw direct method (also called American law) and a wet 3 kinds. The indirect method will zinc ingots heated to 1000 ℃, molten vaporization, inducts the hot air for oxidation, generated by cooling, zinc oxide whirlwind separation, fine particles with bag capture. Namely made zno products. The 2Zn + O2-2ZnO direct method roasting zinc ore powder and anthracite, lime proportional made into the ball. Reduction of smelting, kuangfen of zno by reductive into zinc steam and recanalization into the air for oxidation, zinc oxide generated by capture alkalization zno products. The 2ZnO + C - 2Zn + CO2 ↑ 2Zn + O2-2ZnO wet zinc-base ash and sulfuric acid reacts zinc sulfate, combine it with sodium carbonate and ammonia reaction respectively, with system of carbonate zinc and hydrogen zinc oxide as raw material calcined, crushing system product zinc oxide. ZnSO4 Zn + + H2 H2SO4 - ↑ ZnSO4 + Na2CO3 - ZnCO3 + Na2SO4 in carbonate zinc as raw material, after washing, drying, calcining, crushing system product zinc oxide. ZnCO3 [enables delta] - ZnO + CO2 ↑ with hydrogen zinc oxide as raw material by the washing precipitation, dry, calcining, cooling, crushing must zinc oxide. Its Zn (OH) 2 [enables delta] - ZnO + H2O white crystal or powder, belong to a hexagonal system. Odurless, non-toxic, no sand sex, quality and exquisite. 5.606 g/cm3 density, refractive index 2.0041 1800 ℃ distillation. Tinting strength is alkali type carbonated lead 2 times, covering power is half done. LiuHuaXin geo2 cheto-type, Insoluble in water, soluble in acid and ethanol, sodium hydroxide, chloride, belong to both sexes oxide. When heated to high temperature with yellow skin, recovery after cooling white. In humid air can absorb carbon dioxide and water gradually become alkali type carbonate zinc. Can also be carbon monoxide reduction for gold. Or
