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NIOSH

ANTIMONY TRIOXIDE

ICSC: 0012

Antimony sesquioxide
Antimony(III) oxide
Antimony white
Flowers of antimony
Sb2O3
Molecular mass: 291.5
ICSC # 0012 		CAS # 1309-64-4
RTECS # CC5650000
UN # 1549 (see Notes)
EC # 051-005-00-X
September 05, 2003 Validated

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! AVOID EXPOSURE OF (PREGNANT) WOMEN!

•INHALATION Cough. Headache. Nausea. Sore throat. Vomiting.
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.
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 take to a doctor.
•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

STORAGE

PACKAGING & LABELLING

Personal protection: P2 filter respirator for harmful particles. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place.
Separated from food and feedstuffs .
Do not transport with food and feedstuffs.
Xn symbol
R: 40
S: 2-22-36/37
ICSC: 0012 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

ANTIMONY TRIOXIDE

ICSC: 0012

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
WHITE CRYSTALLINE POWDER.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes . Reacts under certain circumstances with hydrogen, producing a very poisonous gas (stibine).

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (as Sb) 0.5 mg/m3 as TWA; (ACGIH 2003). TLV: Antimony trioxide (production) A2 (suspected human carcinogen); (ACGIH 2003).
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 irritating to the eyes , the skin and the respiratory tract .

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. Lungs may be affected by repeated or prolonged exposure to the dust of this substance. Tumours have been detected in experimental animals but may not be relevant to humans. Animal tests show that this substance possibly causes toxicity to human reproduction or development.

PHYSICAL
PROPERTIES

Boiling point: (partially sublimes) 1550°C
Melting point: (see Notes) 656°C
Density: 5.2/5.7 g/cm3 (see Notes)
Solubility in water, g/100 ml at 30°C: 0.0014 (none)
Vapour pressure, Pa at 574°C: 130

ENVIRONMENTAL
DATA

The substance is very toxic to aquatic organisms. Bioaccumulation of this chemical may occur in crustacea. It is strongly advised that this substance does not enter the environment.

N O T E S

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. UN regulation: the special provision SP45 is applicable to the UN number 1549 (Hazard class 6.1 and packaging group III). It means that antimony sulfides and oxides which contain not more than 0.5 % of arsenic calculated on the total weight are not subject to these regulations. Card has been partly updated in October 2005. See sections Occupational Exposure Limits.
Transport Emergency Card: TEC (R)-61GT5-III

ADDITIONAL INFORMATION



ICSC: 0012 ANTIMONY TRIOXIDE
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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