Bura

Borax (Na2B4O7.10 N20) is the sodium salt tetraborat acid (sodium tetraborate). Colourless crystals (or white powder), soluble in water and insoluble in alcohol. Has a disinfectant effect. Used externally, for rinsing, rinsing, lubrication. Borax used to deal with cockroaches, beetles, and in soap and cosmetics industry.