Premium grade boron oxide cas no 1303-86-2 boric oxide powder with the purity 98.8%min and 60-200 mesh mainly used in the glass, ceramics, refractory raw materials, catalysts for chemical processing and chemical agent. Phthalic anhydride supplier in dubai, fujairah, ajman, sharjah, uae, middle east; phthalic anhydride supplier in dubai, fujairah, ajman, sharjah, uae, middle east. presentation to phthalic anhydride may happen amid its utilization as a compound middle of the road in the plastics business. the intense (here and now) impacts from presentation to ... Boric anhydride, 98% 1303-86-2 by j&k scientific in large quantities on chemondis, the trusted chemical b2b online marketplace. verified suppliers no transaction costs sign up now Boric oxide is used as a binder for magnesia-based refractory bricks and as a stabilizer for dolomite refractory bricks, commonly used in steel-smelting furnaces. and, more finally, boric oxide is used as a catalyst in the conversion and synthesis of many organic compounds, as well as in the preparation of boron halides, sodium borohydride, metallic borates, and borate esters.