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CARBON MONOXIDE ICSC: 0023
Date of Peer Review: October 1994

Carbon oxide
Carbonic oxide
CAS # 630-08-0 CO
RTECS # FG3500000 Molecular mass: 28.0
UN # 1016
EC # 006-001-00-2
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Extremely flammable.
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 carbon dioxide, water spray, powder.
EXPLOSION Gas/air mixtures are explosive.
Closed system, ventilation, explosion-proof electrical equipment and lighting. Use non-sparking handtools.
In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position.
EXPOSURE
AVOID EXPOSURE OF (PREGNANT) WOMEN!
IN ALL CASES CONSULT A DOCTOR!
Inhalation Confusion. Dizziness. Headache. Nausea. Unconsciousness. Weakness.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
Skin


Eyes


Ingestion


SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Ventilation. Personal protection: self-contained breathing apparatus.
EU Classification
Symbol: F+, T
R: 61-12-23-48/23
S: 53-45
Note: [E]
UN Classification
UN Hazard Class: 2.3
UN Subsidiary Risks: 2.1

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-20S1016
NFPA Code: H3; F4; R0
Fireproof. Cool.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2004

SEE IMPORTANT INFORMATION ON BACK


CARBON MONOXIDE ICSC: 0023
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
ODOURLESS, TASTELESS, COLOURLESS COMPRESSED GAS.

PHYSICAL DANGERS:
The gas mixes well with air, explosive mixtures are easily formed. The gas penetrates easily through walls and ceilings.

CHEMICAL DANGERS:
In the presence of finely dispersed metal powders the substance forms toxic and flammable carbonyls. May react vigorously with oxygen, acetylene, chlorine, fluorine, nitrous oxide.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 25 ppm as TWA; BEI issued; (ACGIH 2004).
MAK: 30 ppm, 35 mg/m; Peak limitation category: II(1); Pregnancy risk group: B; (DFG 2004).
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:
The substance may cause effects on the blood cardiovascular system and central nervous system. Exposure at high levels may result in lowering of consciousness and death. Medical observation is indicated.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the nervous system and cardiovascular system, resulting in neurological and cardiac disorders. Suspected to cause reproductive effects such as neurological problems, low birth weight, increased still births, and congenital heart problems.
PHYSICAL PROPERTIES
Boiling point: -191C
Melting point: -205C
Solubility in water, ml/100 ml at 20C: 2.3
Relative vapour density (air = 1): 0.97
Flash point: Flammable Gas
Auto-ignition temperature: 605C
Explosive limits, vol% in air: 12.5-74.2
ENVIRONMENTAL DATA

NOTES
Carbon monoxide is a product of incomplete combustion of coal, oil, wood. It is present in vehicle exhaust and tobacco smoke. Depending on the degree of exposure, periodic medical examination is suggested. No odour warning if toxic concentrations are present.
Card has been partly updated in April 2005. See sections Occupational Exposure Limits, Emergency Response.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2004
See Also:
        Carbon monoxide (CHEMINFO)
        Carbon monoxide (EHC 13, 1979)
        Carbon monoxide (EHC 213, 1999)