... Borax penta is a complex borate mineral that is found in playa lakes and other evaporite deposits. The basic structure ... crystals or crystalline masses, efflorescent, soluble in water, very soluble in boiling water, freely soluble in glycerol. Usage: mainly used for ... , refined gold, cosmetics, borax soap, antiseptic, antifreeze, and in pharmaceuticals as disinfectors etc. its also one of basic raw ...