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SZSE：002741
Chemical Reagents
Sodium tetraborate?decahydrateCOA Report
  • CAS No.：1330-43-4
  • Molecular weight：201.22
  • Aliases：Sodium tetraborate
  • Molecular formula：Na2B4O7·10H2O
  • UN Code：1458
  • EC No.：215-540-4
Information
Specification category：
Product No. Product name Specifications
1.01396.030 Sodium tetraborate?decahydrate AR500g
1.01396.040 Sodium tetraborate?decahydrate CP500g
1.01396.050 Sodium tetraborate?decahydrate AR25kg/Drum
1.01396.080 Sodium tetraborate?decahydrate CP25kg/Drum
1.01396.090 Sodium tetraborate?decahydrate AR25kg/Sack
1.01396.100 Sodium tetraborate?decahydrate CP25kg/Drum
1.01396.110 Sodium tetraborate?decahydrate Spec25kg/Sack
Characteristic： Appearance and properties: odorless, colorless, translucent, salty crystals or white crystalline powder.
Relative density: 2.37
Melting point(℃): 741
Boiling point(℃): 1575 (decomposition)
Concentration: pure
Solubility: slightly soluble in ethanol, cold water, easily soluble in hot water.
Technical indicators：
Item AR CP
Content Assay (Na2B4O7 ? 10H2O) ≥ 99.5% ≥ 99.0%
Clarity Clarity of solution ≤ 4 ≤ 6
Hydrochloric acid insoluble Insoluble matter in hydrochloric acid ≤ 0.005% ≤ 0.02%
Chloride Chloride (Cl) ≤ 0.002% ≤ 0.005%
Sulfate Sulfate (SO4) ≤ 0.01% ≤ 0.015%
Phosphate Phosphate (PO4) ≤ 0.002% ≤ 0.005%
Calcium Calcium (Ca) ≤ 0.005% ≤ 0.02%
Iron Iron (Fe) ≤ 0.0003% ≤ 0.0005%
Copper Copper (Cu) ≤ 0.001% ≤ 0.002%
Lead Lead (Pb) ≤ 0.001% ≤ 0.002%
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