Chemical Name: Sodium oxalate
CAS No.: 62-76-0
Molecular Formula: C2Na2O4
Molecular Weight: 134
Sodium Oxalate (CAS 62-76-0), a sodium salt of oxalic acid, is a white crystalline powder with molecular formula Na₂C₂O₄. Key parameters:
Parameter | Specification |
---|---|
CAS Number | 62-76-0 |
Purity | ≥99.3% |
Solubility | 3.7 g/100mL (20°C) |
pH | 7.5-8.5 (1% solution) |
Application | Concentration | Temperature Range |
---|---|---|
Metal Precipitation | 5-15% w/v | 40-60°C |
Titration Standard | 0.1N Solution | 25±2°C |
Challenge: Heavy metal removal from industrial effluent
Solution: 12% sodium oxalate solution at 55°C
Result: 98.7% Pb²⁺ removal efficiency
Challenge: Standardization of KMnO₄ solutions
Solution: 0.05M sodium oxalate reference
Result: ±0.2% titration accuracy achieved
Parameter | Sodium Oxalate | Sodium Citrate | Potassium Oxalate |
---|---|---|---|
Metal Chelation Strength | High | Medium | High |
pH Stability | 7.5-8.5 | 3.0-6.5 | 4.5-5.5 |
Application: Rare earth element extraction
Consumption: 15MT/month
Outcome: 22% production cost reduction
Application: Heparin sodium purification
Consumption: 850kg/quarter
Outcome: 99.95% API purity compliance
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