Chemical Name: Sodium borate
Another Name: Borax
Molecular Formula: Na2B4O7·10H2O
Molecular Weight: 381.37
CAS No. : 1303-96-4
Standard Executed: GB/T 537-2009
Appearance
White fine crystals.
Application
• Used in glass industry, manufacturing optical glass and heat-resistant and corrosion-resistant glass; used as enamel and ceramic industry glaze;
• Used as a filler in laundry detergents and soaps;
• Used as a boron fertilizer and as a herbicide and fungicide in agriculture;
• Used as a sterilizing agent in medicine.
Packing
• Net weight : 25kg;
• PP woven bag, with inner PE plastic bag.
Specification
Item |
Standard |
|
Superior-grade |
First-grade |
|
Content (Na2B4O7·10H2O)ω/% ≥ |
99.5 |
95.0 |
Carbonate (as CO3) ω/% ≤ |
0.1 |
0.2 |
Water insoluble matter ω/% ≤ |
0.04 |
0.04 |
Sulfate (as SO4) ω/% ≤ |
0.1 |
0.2 |
Chloride (as NaCl) ω/% ≤ |
0.03 |
0.05 |
Iron (as Fe) ω/% ≤ |
0.002 |
0.005 |