A wide variety of boric anhydride options are available to you, there are 456 boric anhydride suppliers, mainly located in asia. the top supplying countries or regions are china, india, and thailand, which supply 98%, 1%, and 1% of boric anhydride respectively. A mixture of potassium and boric acid may explode upon impact. a mixture of boric acid and acetic anhydride will explode when heated to 58-60°c. emits toxic fumes (borane, boron oxides) under fire ... white crystalline powder. solid. odor no odor odor threshold not available ph 5.2 (1% aq. soln.) melting point/freezing point 169°c (336°f ... Factory directly boric acid crystals for sale , find complete details about factory directly boric acid crystals for sale,boric acid crystals,boric acid,boric from inorganic acids supplier or manufacturer-zhengzhou qiangjin science and technology trading co., ltd. ... appearance: a white crystalline powder or flake triclinic axis, shiny ... Boron oxide also referred to as boric anhydride, boron trioxide, boric oxide, and diboron trioxide.it is a colorless, semi-transparent glassy lumps or hard white odorless crystals. boron oxide is almost always found as the vitreous (amorphous ) form. it is moderately soluble in water.