Product
Product
Boron Oxide, colorless vitreous crystal or powder, melting point 450°C, has strong water absorption, so it should be stored in a dry environment to prevent water absorption and deterioration leading to a decrease in content. Slightly soluble in cold water, easily soluble in hot water , Boric anhydride is colorless glassy crystal or powder, tasteless. It can strongly absorb water in the air to form boric acid, which can be reduced to monomer boron by alkali metal at high temperature. The density of crystalline boron oxide is 2.46g/cm3, and the density of amorphous boron oxide is 1.80-1.84g/cm3. 
Melting point 450 °C(lit.) Boiling point 1860 °C density 2.46 g/mL at 25 °C(lit.) vapor density >1 (vs air) Fp 1860°C storage temp. Inert atmosphere,Room Temperature solubility 36g/l form pellets color White Specific Gravity 2.46 +/- 0.01 PH 4 (10g/l, H2O, 25oC) Odor Odorless Water Solubility 36 g/L (25 oC) Sensitive Hygroscopic Test items Specifications Assay 99.0%min Moisture 2.00% Particle Size Distribution On 1.700mm Max.1.0 Through 0.150mm Min. 3.0 Ferric 0.002% max Appearance White powder
It is used as the flux in decomposition of silicates the mixing agent of semiconductor material,the additives of heatproof glassware and paint refractory. It is also used in production of alloy steel in metallurgical industry. In addition its used as the catalyst in organic synthesis, the additive of lubricant used in high temperature, can be also used an environmental protection.
