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Product Details
Borax
Product Description
CAS No.: 1303-96-4
H. S No.: 28401900
Molecular formula: Na2B4O7
Molecular weight: 381.36 (International atomic weight in 1979)
Quality standard: National standard (GB537-1997) Subtitled for GB/537-84
Usage: Borax is widely used in glass, fiberglass, frits, glazes and other industries.
Package: Net weight 25kgs, 50kgs per each plastic woven bag
| Item | Excellent grade Index |
| Disodium terabrate decahydrate (Na 2 B 4 O 7 .10H 2 O) | 99.5%min |
| Carbonate(CO 2 ) | 0.1%max |
| Insoluble substance in water | 0.04%max |
| Sulfate (SO 4 ) | 0.3%max |
| Chloride (Cl) | 0.03%max |
| Fe content (Fe) | 0.002%max |
| Item | First grade Index |
| Disodium terabrate decahydrate (Na 2 B 4 O 7 .10H 2 O) | 95%min |
| Carbonate (CO 2 ) | 0.2%max |
| Insoluble substance in water | 0.04%max |
| Sulfate (SO 4 ) | 0.3%max |
| Chloride (Cl) | 0.05%max |
