Borax Properties, Molecular Formula, Applications - WorldOfChemicals

Borax Properties


Borax-Molecule 3D Struture
Molecule Structure Image



Borax is an important boron compound, a mineral, and a salt of boric acid. It has a wide variety of uses. It is a component of many detergents, cosmetics, and enamel glazes. It is also used to make buffer solutions in biochemistry, as a fire retardant, as an anti-fungal compound for fiberglass, as an insecticide, as a flux in metallurgy, a texturing agent in cooking, and as a precursor for other boron compounds.The term borax is used for a number of closely related minerals or chemical compounds that differ in their crystal water content, but usually refers to the decahydrate.

Chemical Properties

Appearance White solid
Boiling Point 1575 °C
CAS Number 1303-96-4
Density 1.73 g/cm3
EINECS Number 215-540-4
HS Code 28401990
IUPAC Name Sodium Tetraborate Decahydrate
InChI 1S/B4O7.2Na.10H2O/c5-1-7-3-9-2(6)10-4(8-1)11-3;;;;;;;;;;;;/h;;;10*1H2/q-2;2*+1;;;;;;;;;;
Melting Point 743 °C
Molar Mass 381.37g/mol
Molecular Formula B4H20Na2O17
NFPA 704 H-1,F-0,R-0,C-NA
Other_Cations Potassium Tetraborate
RTECS Number VZ2275000
Related Compounds Boric Acid;Sodium Perborate
Solubility 60 g/l
Synonyms Disodiumtetraborate Decahydrate;Sodium Biborate Decahydrate;Sodium Borate Decahydrate;Sodium Pyroboratedecahydrate;Sodium Tetraborate Decahydrate