... masses, efflorescent, soluble in water, very soluble in boiling water, freely soluble in glycerol. Usage: mainly used for glass and porcelain ... easy to fall off and with luster. it also widely used in pesticide, fertilizer, optics glass, glass fiber, colored metal ... , antifreeze, and in pharmaceuticals as disinfectors etc. its also one of basic raw material for making other boric compound.Specification ...