... or crystalline masses, efflorescent, soluble in water, very soluble in boiling water, freely soluble in glycerol. Specifications: na2b4o7.10h2o99.5 ... : mainly used for glass and porcelain enamel industry. In glass industry, it can enhance transparency and heat-resistant ... as jointing agent, cohering agent for jewelry, printing and dyeing, detergent, refined gold, cosmetics, borax soap, antiseptic, antifreeze, ...