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SZSE：002741
Chemical Reagents
Sodium sulfate anhydrous?COA Report
  • CAS No.：7757-82-6
  • Molecular weight：142.04
  • Molecular formula：Na2SO4
  • EC No.：231-820-9
  • HS-No：28331100
Information
Specification category：
Product No. Product name specifications
1.01509.010 Sodium sulfate anhydrous AR500g
1.01509.020 Sodium sulfate anhydrous CP500g
1.01509.030 Sodium sulfate anhydrous CP25kg/drum
1.01509.040 Sodium sulfate anhydrous AR40kg/drum
1.01509.050 Sodium sulfate anhydrous AR25kg/drum
1.01509.080 Sodium sulfate anhydrous Spec25kg/Sack(99.9%)
1.01509.100 Sodium sulfate anhydrous Spec40kg/drum
1.01509.110 Sodium sulfate anhydrous CP25kg/Sack
1.01509.120 Sodium sulfate anhydrous AR25kg/Sack
1.01509.130 Sodium sulfate anhydrous AR5kg×5/Sack
Characteristic： Appearance and properties: white, odourless, bitter crystalline or powder,hygroscopic.
Relative density?(water=1): 2.68
Melting point(℃): 884
Boiling point(℃): 1700
Concentration: sterling
Solubility: Dissolved?in ethanol. Soluble in water and glycerol
Technical indicators：
Item AR CP
Assay(Na2SO4) ≥99.0% ≥98.0%
pH value(50g/L solution, 25℃) 5.0～8.0 5.0～8.0
Clarity of solution pass3 pass5
Insoluble matter in water ≤0.005% ≤0.02%
Loss on ignition ≤0.2% ≤0.5%
Chloride(Cl) ≤0.001% ≤0.005%
Phosphate(PO4) ≤0.001% ≤0.002%
Total nitrogen(N) ≤0.0005% ≤0.001%
Potassium(K) ≤0.01% --
Calcium(Ca) ≤0.002% ≤0.005%
Iron(Fe) ≤0.0005% ≤0.0015%
Heavy metals(as Pb) ≤0.0005% ≤0.002%
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