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ANTIMONY TRIOXIDE
ICSC: 0012
Peer-Review Status: 04.10.2013 Validated
Antimony sesquioxide
Antimony(III) oxide
Antimony white
Flowers of antimony
CI 77052
C.I. Pigment White 11 
CAS #: 1309-64-4 RTECS #: CC5650000
UN #: (see Notes)
EC #: 051-005-00-X
EINECS #: 215-175-0
    Formula: Sb2O3
Molecular mass: 291.5

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION      
 
EXPOSURE   PREVENT DISPERSION OF DUST! STRICT HYGIENE!   
Inhalation Cough. Headache. Nausea. Sore throat. Vomiting.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness. Pain. Blisters.  Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention . 
Eyes Redness. Pain.  Wear safety goggles or eye protection in combination with breathing protection if powder.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Diarrhoea. Sore throat. Vomiting. Burning sensation in the stomach. Further see Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Rest. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.  Do not transport with food and feedstuffs. 
EC Classification
Symbol: Xn; R: 40; S: (2)-22-36/37 
UN Classification
 
GHS Classification
Signal: Warning
Suspected of causing cancer
Causes mild skin irritation 
cancer;health haz

EMERGENCY RESPONSE SAFE STORAGE
  Separated from food and feedstuffs. 

IMPORTANT DATA
Physical State; Appearance
WHITE CRYSTALLINE ODOURLESS POWDER. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces toxic fumes. Reacts under certain circumstances with hydrogen. This produces a very poisonous gas (stibine - see ICSC 776). 

Occupational exposure limits
TLV (Exposure by all routes should be carefully controlled to levels as low as possible): A2 (suspected human carcinogen); (ACGIH 2011).
MAK: Carcinogen category: 2; Germ cell mutagen group: 3A; (DFG 2005). 

Routes of exposure
The substance can be absorbed into the body by inhalation. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

Effects of short-term exposure
The substance is mildly irritating to the eyes, skin and respiratory tract. 

Effects of long-term or repeated exposure
Repeated or prolonged inhalation of dust may cause effects on the lungs. Tumours have been detected in experimental animals but may not be relevant to humans. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 1550°C (partially sublimes)
Melting point: 656°C
Density (at 24°C): 5.9 g/cm³
See Notes.
Solubility in water, g/l at 22.2°C: 0.0033 (none)
Vapour pressure, Pa at 574°C: 130  
 

NOTES
Melting point established under the absence of oxygen.
Density differs with crystalline structure.
Depending on the degree of exposure, periodic medical examination is suggested.
The recommendations on this card do not apply to vapour exposure during the production.
The technical product may contain impurities which alter the health effects; for further information see ICSC 0013 Arsenic.
According to special provision SP45, antimony trioxide is not regulated for transport unless it contains more than 0.5% of arsenic. In that case it should be classified as UN number 1549 (Hazard class 6.1 and packaging group III).
TLV Note: Exposure by all routes should be carefully controlled to levels as low as possible. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.
    See Also:
       Toxicological Abbreviations
       Antimony trioxide (UKPID)