... %, 99.5%, 99.9% Specifications Boric acid, also called hydrogen borate, boracic acid, orthoboric acid and ... cements, wicks, food preservatives, special glasses; Also for leather dressing compounds for preparation of hides prior to tanning; Artificial ... flux in metallurgical industry, fire-proofing compositions and linings for safes; Also for pigments; Enamel paints, paper glazes, cosmetics, soaps, ...