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Antimony trioxide

CAS 1309-64-4

Also registered as 12 other CAS numbers

1327-33-9 · 1317-98-2 · 12412-52-1 · 10042-99-6 · 12423-58-4 · 97048-22-1 · 97048-23-2 · 154396-41-5 · 178989-93-0 · 212793-41-4 · 2144402-92-4 · 2379521-11-4

Antimony trioxide chemical structure

Concern score

Not assessed — no hazard data yet.

Antimony trioxide in plain language

What it is

Also known as Antimony oxide (SB2O3) · Distiboxane-1,3-dione · NCI-C55152 · bis(antimony(3+));tris(oxygen(2-)) · Antimony oxide · Amspec-KR

Show all 35 names

Antimonious oxide · Antimony Bloom 100A · Antimony Bloom 500A · Antimony oxide (Antimony trioxide) · Antimony oxides · Antimony sesquioxide · Antimony white · Antimony(3+) oxide · Dechlorane A-O · Diantimony trioxide · Exitelite · Fireshield H · Patox C · Patox H · Patox L · Patox M · Patox S · Sb2O3 · Stibiox MS · Thermoguard B · Thermoguard L · Thermoguard S · Timonox · Twinkling star · White star · antimony (tri)oxide (sara iii) · antimony trioxide (sara iii) · antimony trioxide (sara 313) (cercla) · Antimonium oxydatum

What it does

We don't have a plain-language description for Antimony trioxide yet.

Recorded functional uses: Adhesion/cohesion promoter · Catalyst · Component of backing

Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. Antimony trioxide appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Cleaning
  • Pharma
  • Industrial
  • USEPAcommercial use observedEPA CPDat observed this chemical in 639 composition records across product categories including Furniture and furnishings, Construction and building materials, Construction. EPA CPDat classifies this chemical for functional uses including Flame retardant, Filler, component of vinyl gasketing options..
    • EPA CPDat observed this chemical in 639 composition records across product categories including Furniture and furnishings, Construction and building materials, Construction. EPA CPDat classifies this chemical for functional uses including Flame retardant, Filler, component of vinyl gasketing options..Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Evidence & sources

No graded research studies for Antimony trioxide yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

5 data sources

Where this comes from

  • EPA Chemical and Products Database

    exposure · updated october 21, 2016

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →
  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Antimony trioxide in a product composition. These are source records, not Greenveil catalog products.

Source records

639

Named organisations

6

Furniture and furnishingsConstruction and building materialsConstructionIndustrial productsSpecialty occupational productsLaboratory supplies

Typical roles

Adhesion/cohesion promoterCatalystComponent of backingComponent of vinyl gasketing options.Component of vinyl threshold options.Conductive agentFillerFlame retardant
See products using Antimony trioxide →