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Post
Date:
Jun 16, 2008
Expiry
Date:
Jun 16, 2010
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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. |
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