Identification Chemical Properties Hazard Information

12045-87-3

Name Boric acid disodium salt,tetrahydrate
CAS 12045-87-3
Molecular Formula BH9Na2O7
MOL File 12045-87-3.mol

Chemical Properties

Definition A natural sodium borate found in Kern County, California.
Appearance Colorless to white, two good cleavages, luster vitreous to pearly. Mohs hardness 3, d 1.95. Noncombustible.
density  1.950
form  white monoclinic crystals
color  white monoclinic crystals, crystalline
Water Solubility  % anhydrous in H2O: 14.82 (60°C), 17.12 (70°C), 19.88 (80°C), 23.31 (90°C), 28.22 (100°C) [KIR78]
Uses
Major source of borax and boron compounds.
CAS DataBase Reference 12045-87-3
EPA Substance Registry System Kernite (12045-87-3)

Hazard Information