Ads by Google
Borax
Molecular Formula:Na2B4O7.10H2O
Molecular Weight:381.37
Melting point: 320°C
Boiling point:1575°C
HS Code:25281000.00
Standard execute:GB/T537-1997
Appearance:white power or granule
Specification:
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.
Borax