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STIBINE
(cylinder)
ICSC: 0776
Peer-Review Status: 04.11.2008 Validated
Antimony hydride
Antimony trihydride
Hydrogen antimonide 
CAS #: 7803-52-3 RTECS #: WJ0700000
UN #: 2676
EC #: 051-003-00-9
    Formula: SbH3
Molecular mass: 124.8

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Extremely flammable. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames, NO sparks and NO smoking.  Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out. In other cases extinguish with water spray. 
EXPLOSION Gas/air mixtures are explosive. Risk of fire and explosion on contact with ozone or nitric acid.  Closed system, ventilation, explosion-proof electrical equipment and lighting.  In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position. 
 
EXPOSURE   AVOID ALL CONTACT!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Cough. Sore throat. Headache. Weakness. Laboured breathing. Nausea. Weak and irregular pulse. Hemoglobinuria.  Use closed system or ventilation.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer immediately for medical attention. 
Skin ON CONTACT WITH LIQUID: FROSTBITE.  Cold-insulating gloves.  ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer immediately for medical attention. 
Eyes Redness.  Wear eye protection in combination with breathing protection.  Rinse with plenty of water (remove contact lenses if easily possible). Refer immediately for medical attention. 
Ingestion      

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus. Ventilation.   
EC Classification
Symbol: Xn, N; R: 20/22-51/53; S: (2)-61; Note: A, 1 
UN Classification
UN Hazard Class: 2.3; UN Subsidiary Risks: 2.1 
GHS Classification
Signal: Danger
Extremely flammable gas
Fatal if inhaled
May cause damage to respiratory tract and blood if inhaled 
flam;flameskull;toxiccancer;health haz

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-20GT2TF.
NFPA Code: H4; F4; R2. 
Fireproof. Cool. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS COMPRESSED GAS WITH PUNGENT ODOUR. 

Physical dangers
The gas is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
Decomposes slowly at room temperature. Decomposes quickly at 200°C. This produces metallic antimony and hydrogen. This increases fire hazard. Reacts violently with chlorine, concentrated nitric acid and ozone. This generates fire and explosion hazard. 

Occupational exposure limits
TLV: 0.1ppm as TWA; (ACGIH 2007).
MAK (2b (not established but data is available)): (DFG 2007). 

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

Inhalation risk
A harmful concentration of this gas in the air will be reached very quickly on loss of containment. 

Effects of short-term exposure
Rapid evaporation of the liquid may cause frostbite. The substance is severely irritating to the respiratory tract. The substance may cause effects on the blood. This may result in destruction of blood cells. Exposure above the OEL could cause death. Medical observation is indicated. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: -18°C
Melting point: -88°C
Relative density (water = 1): 2.26 (-25°C)
Solubility in water: poor
Relative vapour density (air = 1): 4.4
Flash point: Flammable gas 
 

NOTES
Explosive limits are unknown in literature, although the substance is combustible and has a flash point < 61°C.
Depending on the degree of exposure, periodic medical examination is suggested.
The relation between odour and the occupational exposure limit cannot be indicated. 

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
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    See Also:
       Toxicological Abbreviations