phosphonic acid [1] phosphorous acid [2]
CAS 13598-36-2 · H3O3P
Hazard classDanger — Irritant / harmful, Corrosive
PictogramsIrritant / harmfulCorrosive
H-statements- H302 Harmful if swallowed
- H314 Causes severe skin burns and eye damage
Common uses (US EPA CDR)Soil amendments (fertilizers)IntermediateProcessing aids not otherwise specifiedCorrosion inhibitorCBIFlocculating agent
SynonymsRefChem:6132 · Phosphonic acid · Phosphorus trihydroxide
Molecular weight81.996 g/mol
Data sourceHarmonised classification ECHA — EU CLP Annex VILegally binding EU classification adopted by ECHA under CLP Annex VI — the highest-confidence GHS source.
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