Antimony (III) Oxide


Product # 1127
Name Antimony (III) Oxide
Synonyms Antimony trioxide, diantimony trioxide, antimony sesquioxide, antimonous oxide
Formula Sb2O3
Purity 99.99%
CAS Number 1309-64-4
Molecular Weight 291.52
Color & Form White Solid
Boiling Point 1425° C
Specific Gravity 5.67 gm/ml
Solubility Very slightly soluble


10 gm $15.00
50 gm $50.00
  • For other quantities or purities not listed, please request a quotation. We can offer many items in bulk or custom packaging.
  • All pricing is subject to confirmation at the time the order is placed.

Related Products

Product # Name Purity
1126 Antimony (III) Oxide 99.9%
1129 Antimony (III) Oxide 99.999%


Transportation Information UN1549, Antimony compounds, inorganic, n.o.s., 6.1, III (DOT)
Air Transportation Information UN1549, Antimony compound, inorganic, n.o.s., 6.1, III (ATA)
Pictogram Pictogram: Health 
Signal Word Warning
Hazardous Statements

H351  Suspected of causing cancer.

H412  Harmful to aquatic life with long lasting effects.

Precautionary Phrases

P201  Obtain special instructions before use.

P202  Do not handle until all safety precautions have been read and understood.

P273  Avoid release to the environment.

P281  Use personal protective equipment as required.

P308+P313  IF exposed or concerned: Get medical advice/attention.

P501  Dispose of contents/container to.....

Detailed Safety and Handling Information can be found on our Safety Data Sheet (SDS).

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