Borax
Molecular Formula: Na2B4O7·10H2O
Molecular weight: 381.36
Quality Standards:
|
ITEM |
Specification | |
|
Premium grade |
First grade | |
|
Sodium Borate 10 Hydrous (Na2B4O7·10H2O)%≥ |
99.5% |
95.0% |
|
Sodium carponate (Na2CO3) % ≤ |
0.1% |
0.2% |
|
Insoluble matter in water % ≤ |
0.04% |
0.04% |
|
Sodium Suitate (Na2SO4) % ≤ |
0.1% |
0.2% |
|
Sodium Chloride (NaCl) % ≤ |
0.03% |
0.05% |
|
Iron (Fe) % ≤ |
0.002% |
0.005% |
Properties:
White powder crystal, specific weight 1.69-1.73, hardness 2-2.5. It is soluble in water, in soluble in alcohol and the solution indicating wealk baicity. When heated to 350-4.00℃, it loses the crystal water and changes into waterless borax, which feature sterilizing. It will do harm to one's health taking orally.
Uses: An important material for glass, enamel, ceramics, nonferrous mental, metallurgical industry, etc. It can be used as a micro-element manure and disinfectant in agriculture, and it is also widely used in pharmaceutical industry. Borax is also a basic raw material for boride and high energy boron hyduide fuel.
Packing: Packed in woven plastic bags lined with plastic bags of 25KG/50KG net each.