12045-87-3

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12045-87-3 Structure

Identification	Back Directory
[Name] Boric acid disodium salt,tetrahydrate
[CAS] 12045-87-3
[Synonyms] Kernite hydrogen borate
[Molecular Formula] BH9Na2O7
[MOL File] 12045-87-3.mol

Chemical Properties	Back Directory
[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	Back Directory
[Chemical Properties] Colorless to white, two good cleavages, luster vitreous to pearly. Mohs hardness 3, d 1.95. Noncombustible.
[Agricultural Uses] Kernite (Na₂B₄O₇·4H₂O) is a borate mineral, like rasorite and tincal (Na₂B₄O₇.10H₂O)T. These three are the main sources of borax. Kernite is found in Kern country, California.

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