55 lbs - Borax Decahydrate 10 MOL- (Na2B4O7.10H2O)
Lab / Assay Grade
CAS 1303-96-4
Sodium Tetraborate Decahydrate
Na2B4O7-10H2O
For use in special fluxes, as a buffering agent, and for melting or smelting where normal anhydrous borax is not appropriate.
Other common names include Sodium TetraBorate Decahydrate, Borax 10-hydrate, 10 Mol Borax, Neobor
Sold by the Each (55 lbs) Bag
Product Analysis
Typical Analysis Specification Typical Result
B2O3 36.0% min. 37.3%
Na2O 16.0% min. 16.4%
Purity 99.9% min. 99.9%
SO4 400 ppm max. 25 ppm
Cl 500 ppm max 18 ppm
Fe 20 ppm max. 7 ppm
Solubility in Water 0.39 lb/gal
pH 9.3 (0.1% solution 20oC)