... B2O3:48.5% min boron: 17% min, special for agricuture; used for making ceramics. Glazes, cements, wicks etc. Boric AcidFormula: ... flux in metallurgical industry, fire- proofing compositions and linings for safes; also for pogments; enmel paints, paper glazes, cosmetics, soaps, ... B Chemical Co., Ltd., we are a professional exporting company for industry chemicals, if you have some inquires, please don ...