Borax Anhydrous has a wide variety of uses. It is a component of many detergents, cosmetics, and enamel glazes. It is also used to make buffer solutions in biochemistry, as a fire retardant, as an anti-fungal compound for fiberglass, as a flux in metallurgy, neutron-capture shields for radioactive sources, texturing agent in cooking, and as a precursor for other boron compounds. Borax Anhydrous, is the most concentrated sodium borate product because it has no bound water. It is used to manufacture heat resistant glass, high-quality glass, refractories and enamel glazes requiring high color standards. Functions Chelating Agent Antibacterial Preservative Tackifier Additive Texture Modifier Sales Specifications Boric Oxide (B2O3): 68.5 % Min Equivalent Borax (Na2B4O7): 99.0 % Min Sodium Oxide (Na2O): 30.5 % Min Sulfate as SO4: 150 ppm Max Total Iron (Fe): 50 ppm U.S. Standard Sieve No.: 2 % max Packing 55.12 lb bag, 42 bags per pallet