Antimony trioxide, or ATO, is an inorganic antimony compound. It is used as a flame-retardant synergist with halogenated compounds in plastics, textiles and coatings. Other applications include paint pigments, enamels, ceramics and glass. It also serves as a catalyst and plastics stabiliser. Recorded grades are technical and micronised. Packaging formats include 25 kg bags, 1000 kg big bags and bulk.
Full specification
- Molecular formula
- Sb2O3
- Grades
- technicalmicronized
- Packaging
- 25 kg bag · 1000 kg big bag · bulk
- Appearance
- Heavy white crystalline powder
- Synonyms
- Sb2O3 · ATO · 1309-64-4 · CAS 1309-64-4 · antimony trioxide · antimony(III) oxide · flame retardant synergist · diantimony trioxide
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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