... in glycerol. Specifications: na2b4o7.10h2o99.5%min.carbonate (co2)0.10%max.insoluble matter in water0.04%max.sulfate (so42-)0 ... .10%max.sodium chloride (cl)0.03%max.iron (fe)0. ... agent for jewelry, printing and dyeing, detergent, refined gold, cosmetics, borax soap, antiseptic, antifreeze, and in pharmaceuticals as disinfectors etc. its ...