Molecular Formula: B2H8O8Zn
Molar mass: 223.07 g/mol
Density: 4.22 g/cm3
Structure of Zinc borate 3.5 hydrate (CAS NO.12513-27-8):
Appearance: No rules (or diamond) white or light yellow powder
Stable: Good thermal stability. Easy to disperse
Solubility: Not dissolve in water, Ethanol , Butanol , Benzene , Acetone , soluble in Hydrochloric acid , Sulfuric acid , Dimethyl sulfoxide
Product categories of Zinc borate 3.5 hydrate (CAS NO.12513-27-8): Cb boride;Inorganic chemical products;Salts
Zinc borate 3.5 hydrate (CAS NO.12513-27-8) can be used for flame retardant of a variety of engineering plastics, rubber products, paints, textiles and others. And it is also used in medicine, waterproof fabric, ceramic glaze, paint mildew, Fungicides, fungicides and so on.
Production methods: zinc oxide approach: First, filling with a certain concentration of Boric acid media solution in the crystallization device, then inputs a certain ratio of Zinc oxide and Boric acid , at the 80 ~ 100 °C reacting for 5 ~ 7h, and then filtered, washing, drying, and grinding, at last, obtain the product: Zinc borate 3.5 hydrate (CAS NO.12513-27-8). Its
2ZnO +6 H3BO3 → 2ZnO · 3B2O3 · 3.5 H2O +5.5 H2O
Zinc hydroxide method: Its
2Zn (OH) 2 +6 H3BO3 → 2ZnO · 3B2O3 · 3.5 H2O +7.5 H2O Borax approach: using Zinc sulfate , Boric acid and Zinc oxide in the molar ratio of 7:7:1, reacting at 95 °C to obtained Zinc borate . its
3.5Na2B4O7 +3.5 ZnSO4 +0.5 ZnO → 2 (2Zn0.3B2O3 · 3.5H2O) +3.5 Na2SO4 +2 H3BO3
Zinc borate 3.5 hydrate ,its cas register number is 12513-27-8. It also can be called Zinc borate oxide 3.5 hydrate and Zincboratehydrate .
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