Phosphorous acid is a crystalline inorganic acid and a reducing agent. It serves as an intermediate in the synthesis of phosphonates. Applications include the production of water-treatment chemicals, agricultural formulations and specialised PVC stabilisers. The material is a white, crystalline, deliquescent solid or a colourless solution. The catalogue records technical grade, with packaging formats of 25 kg bags and 1000 kg big bags.
Full specification
- Molecular formula
- H3PO3
- Grades
- technical
- Packaging
- 25 kg bag · 1000 kg big bag
- Appearance
- White crystalline deliquescent solid or colourless solution
- Synonyms
- 13598-36-2 · H3PO3 · phosphonic acid · orthophosphorous acid
Compliance & regulatory
Region: EU — Chemotto S.r.l., Milano
- REACH-aligned supply
- CLP-labelled
REACH REACHRegistration, Evaluation, Authorisation and Restriction of Chemicals — the EU chemicals regulation (EC 1907/2006). CLP CLPClassification, Labelling and Packaging — the EU regulation (EC 1272/2008) for hazard communication. SVHC SVHCSubstance of Very High Concern — flagged on the REACH Candidate List for possible authorisation or restriction.
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