... , was boric acid. 2.. IndexItemSpecificationApperanceWhite powderBoric Acid (H3BO3),%99.6 minInsoluble matter in water,%0.06 maxSulfate (SO4),%0 ... ),%0.15 maxIron(Fe),%0.0030 maxNitrogen content,%0.7 max 3.use 1)For the production of optical ... IndustryChemical IndustryFor the production of boric acid salts, such as sodium borohydride, ammonium hydrogen borate, boron cadmium tungstate, potassium ...