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Sodium hypophosphite

Molecular formula: NaPH2O2 • H2O

International Name: Sodium hypophosphite

Synonyms: Disodium hydrogen phosphate, Sodium hypophosphite monohydrate

Appearance: white crystals

Uses

Sodium hypophosphite is used:

- as a reducing agent in Ni, Co, Sn-coatings for application onto metals and plastics;

- as an antioxidant (reduces the discolouration of alkyd resins during their preparation);

- as a stabilizing agent for PVC and polyurethanes;

- as a reagent for the photometric determination of As (III) and Sb (III), etc.

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