Antimony hydride
Antimony trihydride
Hydrogen antimonide
SbH3
Molecular mass: 124.8
(cylinder)
ICSC # 0776
CAS # 7803-52-3
RTECS # WJ0700000
UN # 2676
EC # 051-003-00-9
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Extremely flammable.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames, NO sparks, and NO smoking.
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Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out; in other cases extinguish with water spray.
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Explosion
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Gas/air mixtures are explosive.
Risk of fire and explosion on contact with ozone or concentrated nitric acid.
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Closed system, ventilation, explosion-proof electrical equipment and lighting.
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In case of fire: keep cylinder cool by spraying with water.
Combat fire from a sheltered position.
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Exposure
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AVOID ALL CONTACT!
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IN ALL CASES CONSULT A DOCTOR!
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•Inhalation
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Cough.
Sore throat.
Headache.
Weakness.
Laboured breathing.
Nausea.
Weak, slow and irregular pulse. Hemoglobinuria.
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Closed system and ventilation.
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Fresh air, rest.
Half-upright position.
Artificial respiration may be needed.
Refer immediately for medical attention.
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•Skin
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ON CONTACT WITH LIQUID: FROSTBITE.
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Cold-insulating gloves.
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ON FROSTBITE: rinse with plenty of water, do NOT remove clothes.
Refer immediately for medical attention.
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•Eyes
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Redness.
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Eye protection in combination with breathing protection.
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First rinse with plenty of water (remove contact lenses if easily possible).
Refer immediately for medical attention.
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•Ingestion
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Spillage Disposal
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Storage
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Packaging & Labelling
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Gas-tight chemical protection suit including self-contained breathing apparatus.
Evacuate danger area!
Consult an expert!
Ventilation.
Remove all ignition sources.
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Fireproof.
Cool.
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Note: A, 1
Xn symbol
N symbol
R: 20/22-51/53
S: 2-61
UN Hazard Class: 2.3
UN Subsidiary Risks: 2.1
Signal: Danger
Flame-Skull-Health haz
Extremely flammable gas
Fatal if inhaled gas
May cause damage to the respiratory tract and the blood if inhaled
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Important Data
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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:
The substance decomposes slowly at room temperature but quickly at 200°C
producing metallic antimony and hydrogen, which increases fire hazard.
Reacts
violently with chlorine, concentrated nitric acid and ozone
causing fire and explosion hazard.
Occupational Exposure Limits:
TLV: 0.1 mg/m3
(as TWA)
(ACGIH 2007).
MAK: IIb (not established but data is available) (DFG 2007).
OSHA PEL: TWA 0.1 ppm (0.5 mg/m3)
NIOSH REL: TWA 0.1 ppm (0.5 mg/m3)
NIOSH IDLH: 5 ppm See: 7803523
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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
, resulting in destruction of blood cells.
Exposure above the OEL may result in death.
Medical observation is indicated.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: -18°C
Melting point: -88°C
Relative density (water = 1): 2.26 at -25°C
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Solubility in water: poor
Relative vapour density (air = 1): 4.4
Flash point: Flammable Gas
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Environmental
Data
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N O T E S
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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 indicated.
The relation between odour and the occupational exposure limit cannot be indicated.
Transport Emergency Card: TEC (R)-20GT2TF
NFPA Code: H4; F4; R2;
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ADDITIONAL INFORMATION
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ICSC: 0776
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STIBINE
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(C) IPCS, CEC, 1994
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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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