Sodium hypophosphite
Sodium hypophosphite monohydrate is mainly used as a reducing agent in electroless nickel and copper plating, where it can act as a more environmentally friendly alternative than conventionally used formaldehyde. It is also used as starting material in the production of other chemicals e.g. Hypophosphorous acid. It acts as a reactive processing aid (chain length modifier, antioxidant, catalyst, colour stabilizer) in the paper, textile and plastics industries.

Details
Chemical Formula
NaH2PO2 · H2O
REACH Registered by W&F
Yes
EC Number
231-669-9
CAS Number
10039-56-2
Industries
- Industry chemicals
- Surface treatment & Coatings
Applications
- Electroless plating
- Processing aid
- Intermediate
Specification
- NaH₂PO₂ · H₂O: ≥100.5%
- Na₂HPO₃: ≤3000 ppm
- Calcium (Ca): ≤ 40 ppm
- Iron (Fe): ≤2 ppm
- Chloride (Cl): ≤100 ppm
- Sulphate (SO₄²⁻): ≤100 ppm
- pH: 6-8
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