Borax

(bō'raks.) (Chem.) A Biborate of soda, found native in many parts of the world, and, in the crude state, known in commerce as tin cal. In the pure state, it forms large transparent prisms. Owing to its easy fusibility, and its property of forming readily fusible compounds with other metallic substances, B. is of great use in the arts and manufactures. Form. NaO. 2B03 +10Aq. [s. 106]