Carbon monoxide
Properties
of carbon monoxide is described
below 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; 29 mg/m3 (as TWA) (ACGIH 1994-1995).
MAC: 30 ppm; 33 mg/m3; Pregnancy: B (harmful effect probable
in spite of observance of MAC) (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.
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For more information see website:
http://www.cdc.gov/niosh/ipcsneng/neng0023.html
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