Sinyo cosmetic grade Hexagonal Boron Nitride powder Platy multilayer hexagonal boron nitride has greasy feel like talcum powder. Different with talcum, BN is Non-toxic man made material. It is synthesized at 2000℃ temperature from raw materials of Boric Acid, melamine and electric power. Our Sinyo boron nitride powder is inert, non-toxic, and does not contains any hazardous material. Typical Properties of Sinyo's cosmetic grade Hexagonal Boron Nitride Powder. GradeSA10Size Distribution (um)10B2O3%0.2%maxTap density(g/cm3)0.3Crystal size(um)5Surface area ㎡/g8Manner of packing: 10kg in two layers PE bag and packed in a paper drum;                                 1kg in aluminum film bag, 10bags in a paper drum; We exhaust our ability to offer our customers the best quality and services all over the world. Please feel free to contact us, let's begin a pleasant cooperation.