Sodium Hypophosphite
Sodium Phosphinate, Phosphinic Acid Sodium Salt, NaH2PO2.
- CAS
- 7681-53-0
- EC
- 231-669-9
- Sectors
- Mining & Metals, Electronics & Solar PV, Water & Wastewater Treatment
Sodium Hypophosphite (CAS 7681-53-0) is a technical-grade phosphorus-based reducing agent that appears as a white crystalline powder or colorless crystals, and it is used in electroless nickel plating, chemical synthesis, water treatment and energy storage applications. It offers a Technical Grade purity of 99% min, ensuring consistent metal deposition on both conductive and non-conductive substrates.
This white crystalline powder is highly soluble in water and acts as a vital antioxidant in industrial processes. Its unique chemical properties allow for the uniform coating of complex geometries, making it indispensable for high-precision Electronics and Aerospace applications.
As a versatile phosphorus source, it serves as a reaction catalyst and a stabilizing agent in various synthetic pathways. The product is valued for its High Stability under recommended storage conditions and its critical role in advanced Energy Storage systems.
Typical Properties
| Molecular formula | H3O2P.Na |
|---|---|
| Molecular weight | 85.96 g/mol |
| Appearance | white crystalline powder or colourless crystals |
| Form | powder or crystals |
| Color | white crystals, crystalline |
| Density | 1.77 g/cm3 at 20 °C |
| Water solubility | 909g/L at 30°C |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Sodium Hypophosphite
Applications
- Electroless Nickel Plating: Used as a reducing agent to deposit uniform nickel-phosphorus coatings on metal and plastic surfaces.
- Chemical Synthesis: Acts as a catalyst and intermediate in the production of pharmaceuticals and various phosphorus-based specialty chemicals.
- Water Treatment: Utilized as a secondary antioxidant and stabilizer to prevent the oxidation of organic components in industrial water systems.
Safety & Risks
Classified as a non-flammable solid but poses an Explosion Risk when mixed with strong oxidizing agents. Personnel should utilize PPE including Safety Goggles, Chemical-Resistant Gloves, and Dust Masks to prevent irritation.
Packaging
Standard 25 kg multi-layer paper bags with PE liner or 1000 kg Jumbo Bags.