Borax, anhydrous

Danger

Synonyms: Borax, Sodium tetraborate

029-940-03
80700-078EA 134.18 USD
80700-078 80705-012
Borax, anhydrous
di-Sodium tetraborate

Anhydrous Borax is used in almost all Fire Assay fluxes. It lowers the fusion temperature and aids in the formulation of slag.


It lowers the fusion temperature and aids in the formulation of slag.



Caution: Hydrated borax should be avoided as it often produces boil over.

Formula: Na₂B₄O₇
MW: 201.22 g/mol
Boiling Pt: 1575
Melting Pt: 742
MDL Number: MFCD00081185
CAS Number: 1330-43-4
Merck Index: 12,08733

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Specification Test Results

B₂O₃ 68.5 to 69.4%
Na₂B₄O₇ 99.98 to 100.31%
Na₂O 30.5 to 30.91%
H₂O 0 - 1.02%
Fe 0 - 0040%


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