International Chemical Safety Cards

CARBON MONOXIDE ICSC: 0023

CARBON MONOXIDE
Carbon oxide
Carbonic oxide
(cylinder)
CO
Molecular mass: 28.0
CAS # 630-08-0
RTECS # FG3500000
ICSC # 0023
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 if indicated. Refer for medical attention.
  • SKIN



  • EYES



  • INGESTION



    • SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Evacuate danger area! Consult an expert! Ventilation (extra personal protection: self-contained breathing apparatus).
    		Fireproof. Cool.

    F+ symbol
    T symbol
    R: 61-12-23-48/23
    S: 53-45
    Note: E
    UN Hazard Class: 2.3
    UN Subsidiary Risks: 2.1
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0023 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

    International Chemical Safety Cards

    CARBON MONOXIDE ICSC: 0023

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    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 (OELs):
     TLV: 25 ppm; 29 mg/m3 (as TWA) (ACGIH 1994-1995).
    MAK: 30 ppm; 33 mg/m3; Pregnancy: B (harmful effect probable in spite of observance of MAK) (1993).
    OSHA PEL: TWA 50 ppm (55 mg/m3)
    NIOSH REL: TWA 35 ppm (40 mg/m3) C 200 ppm (229 mg/m3)
    NIOSH IDLH: 1200 ppm


    		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 the 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: -191°C
    Melting point: -205°C
    Solubility in water, ml/100 ml at 20°C: 2.3
    Relative vapour density (air = 1): 0.97
    		 Flash point: Flammable Gas
    Auto-ignition temperature: 605°C
    Explosive limits, vol% in air: 12.5-74.2
    ENVIRONMENTAL
    DATA
    N O T E S
    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 indicated. No odour warning if toxic concentrations are present.
    Transport Emergency Card: TEC (R)-827
    NFPA Code: H3; F4; R0
    ADDITIONAL INFORMATION


    ICSC: 0023 CARBON MONOXIDE
    © IPCS, CEC, 1993
    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 IDLH values.