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

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).


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): 0.9		 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 the CEC or 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. 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.