ICSC 0012 - ANTIMONY TRIOXIDE

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ANTIMONY TRIOXIDE	ICSC: 0012 (October 2013)
Antimony sesquioxide Antimony(III) oxide Antimony white Flowers of antimony CI 77052 C.I. Pigment White 11

CAS #: 1309-64-4

UN #: (see Notes)

EC Number: 215-175-0

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings, use appropriate extinguishing media.

PREVENT DISPERSION OF DUST! STRICT HYGIENE!
	SYMPTOMS	PREVENTION	FIRST AID
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	CLASSIFICATION & 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.	According to UN GHS Criteria Suspected of causing cancer Causes mild skin irritation Transportation UN Classification
STORAGE
Separated from food and feedstuffs.
PACKAGING
Do not transport with food and feedstuffs.

ANTIMONY TRIOXIDE

ICSC: 0012

PHYSICAL & CHEMICAL INFORMATION
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).	Formula: Sb₂O₃ Molecular mass: 291.5 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

PHYSICAL & CHEMICAL INFORMATION

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).

Formula: Sb₂O₃
Molecular mass: 291.5
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

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation. Effects of short-term exposure The substance is mildly irritating to the eyes, skin and respiratory tract.	Inhalation risk A harmful concentration of airborne particles can be reached quickly when dispersed. 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.

EXPOSURE & HEALTH EFFECTS

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

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

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

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.

OCCUPATIONAL EXPOSURE LIMITS
TLV: (inhalable fraction): 0.02 mg/m³, as TWA; A2 (suspected human carcinogen). MAK: carcinogen category: 2; germ cell mutagen group: 3A

ENVIRONMENT

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).

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).

ADDITIONAL INFORMATION

EC Classification
Symbol: Xn; R: 40; S: (2)-22-36/37

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