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LC314 Antimony(III) oxide

extra pure


Order number Packaging Quantity Price €
AC27314 Plastic bottle 2.5 kg inquire
AC27314 Fibre carton 50 kg inquire


Product information
Synonyms di-Antimony trioxide
Hill Formula O3Sb2
Chemical formula Sb2O3
HS Code 2825 80 00
EC number 215-175-0
Molar mass 291.49 g/mol
EC index number 051-005-00-X
CAS number 1309-64-4


Chemical and physical data

Solubility 2.70 mg/l (20 °C)
Melting point 656 °C (sublimed)
Molar mass 291.49 g/mol
Density 5.4 g/cm3
Bulk density 800 – 1300 kg/m3
Boiling point 1550 °C (1013 hPa)
Vapor pressure 13.3 hPa (660 °C)


Safety information according to GHS
Hazard Statement(s) H351: Suspected of causing cancer.
Precautionary Statement(s) P281: Use personal protective equipment as required.
P308 + P313: IF exposed or concerned: Get medical advice/attention.
Signal Word Warning
Hazard Pictogram(s)
RTECS CC5650000
Storage class 10 – 13 Other liquids and solids
Categories of danger WGK 2 water endangering
Categories of danger 15
Heavy metal-containing solutions and solids: container E. Stir Raney nickel (also: Urushibara nickel) in the form of an aqueous suspension into hydrochloric acid (Cat. No. 100312) until dissolved (container E). Neither Raney nickel itself nor any filter residues should be allowed to dry out, otherwise they will spontaneously ignite in air. In this context, heavy metal means any compound of antimony, arsenic, cadmium, chromium(VI), copper, lead, nickel and tin, as well as these subtances in metallic form, if they are classified as hazardous (acc. to AbfallverzeichnisV – Waste Catalogue Ordinance, Appendix 3). Other heavy metals should be collected separately.


Safety information
R Phrase R 40
Limited evidence of a carcinogenic effect.
S Phrase S 22-36/37
Do not breathe dust.Wear suitable protective clothing and gloves.
Categories of danger carcinogenic
Hazard Symbol Harmful


Toxicological data
LD 50 oral LD50 rat > 34600 mg/kg


Assay (bromometric) ≥ 99.0 %
Matter insoluble in tartaric acid ≤ 1.0 %
Al (Aluminium) ≤ 20 ppm
As (Arsenic) ≤ 500 ppm
Ca (Calcium) ≤ 20 ppm
Cu (Copper) ≤ 20 ppm
Fe (Iron) ≤ 50 ppm
K (Potassium) ≤ 10 ppm
Mg (Magnesium) ≤ 20 ppm
Na (Sodium) ≤ 20 ppm
Pb (Lead) ≤ 500 ppm
Particle size (D 50) 1.0 – 3.0 µm