Sodium hydrophosphite
Sodium hydrophosphite
Chemical formula: NaPH2O2 • H2O
International name: SODIUM HYPOPHOSPHITE
Synonym: Sodium hypophosphite, 1-water, sodium hypophosphite monohydrate
CAS No: 10039-56-2
Qualifications: Imp.
Appearance: white crystals
Storage: Store in a dry, well-ventilated place
Specification
Sodium hydrophosphite
| № | ITEM | RESULT |
|---|---|---|
| 1 | Assay, % | 100,76 |
| 2 | Na2HPO3, % | 0,186 |
| 3 | Ca2+, % | 0,0009 |
| 4 | Fe2+, % | 0,000038 |
| 5 | Pb, % | 0,000011 |
| 6 | As, % | 0,000041 |
| 7 | Cl, % | 0,0022 |
| 8 | Sulfate, % | 0,0022 |
| 9 | pH | 6,37 |
| 10 | Appearance | White grain crystal |
Application
Sodium hypophosphite is used as:
- reducing agent in the coating of Ni, Co, Sn metals and plastics;
- antioxidant (prevents discoloration of alkyd resins in their preparation);
- PVC stabilizer and polyurethanes;
- a reagent for the photometric determination of As (III) and Sb (III), etc.