CARBON MONOXIDE
SYNONYMS:
CARBONE
(OXYDE de) (French); CARBONIC OXIDE; CARBON OXIDE; CO; EEC No. 006-001-00-2;
EXHAUST GAS; FLUE GAS; KOHLENMONOXID (German); 882 LASER GAS; LASER GAS 920L;
MONOXIDE; MONOXIDO de CARBONO (Spanish); OXYDE de CARBONE (French); POLY II GAS
IDENTIFICATION:
CAS:
630-08-0
DOT ID:
UN1016
(compressed); NA9202 [refrigerated (cryogenic) liquid]
Hazard class or Division:
2.3 (POISONOUS GAS)
ERG Guide:
119
(UN1016); 168 [UN9202]
Formula:
CO
RTECS No:
FG3500000
Properties:
Flammable
colorless gas or cryogenic liquid. Odorless. Liquid floats and
"boils" on water; slightly soluble; poisonous, flammable visible
vapor cloud is produced. Under certain conditions the gas is heavier than air;
can collect in low areas.
Uses:
In metallurgical operations
and refining: reducing agent for oxides; making metal specialized metals and
steels, zinc pigments.
HEALTH & SAFETY INFORMATION
• IDLH:
1,200
ppm
•
OSHA Table Z-1 Air Contaminant
• NIOSH Criteria Document
: NIOSH 73-11000
•
Inhalation may affect the blood, cardiovascular system, and central nervous
system. High level exposures may cause drowsiness, loss of consciousness, and
death. Affects the blood, resulting in the formation of carbon monoxide in the
body (carboxyhemoglobinemia). Carbon monoxide combines with the red blood cells
making them unable to carry oxygen. This results in increased stress on the
heart and circulatory system. Alcoholics, smokers, obese individuals and those
with heart disease are more sensitive than a healthy person to the effects of
carbon monoxide. Skin contact with liquid may cause frostbite.
Exposure Limits:
•
ACGIH TLV: 25 ppm TWA; BEI: 3.5% carboxyhemoglobin (CO-Hb) in blood at end of
shift; 20 ppm CO in end-exhaled air at end of shift.
•
OSHA PEL: 50 ppm/55 mg/m3 TWA
•
NIOSH REL: 35 ppm/40 mg/m3 TWA; 200 ppm/229 mg/m3, ceiling limit
•
DFG MAK: 30 ppm/35 mg/m3; BAT: 5% carboxyhemoglobin (CO-Hb) in blood at end of
shift
Respirator:
350
ppm:
SA (any supplied-air
respirator).
875
ppm:
SA:CF (any supplied-air
respirator operated in a continuous-flow mode).
1500 ppm:
GMFS [end of service life indicator (ESLI)
required.] [any airpurifying, full-facepiece respirator (gas mask) with a
chin-style, front- or back-mounted canister providing protection against the
compound of concern]
P
SCBAF (any self-contained breathing apparatus
with a full facepiece)
P
SAF (any supplied-air respirator with a full
facepiece).
Emergency
or Planned Entry into Unknown Concentrations or IDLH Conditions
SCBAF:PD,PP (any self-contained breathing apparatus
that has a full facepiece and is operated in a pressuredemand
or
other positive-pressure mode)
P
SAF:PD,PP:ASCBA (any
supplied-air respirator that has a full facepiece and is operated in a
pressuredemand or other positive-pressure mode in combination with an auxiliary
self-contained breathing apparatus operated in a pressure-demand or other
positive- pressure mode).
Escape:
GMFS [end of service life
indicator (ESLI) required.] [any airpurifying, full-facepiece respirator (gas
mask) with a chin-style, front- or back-mounted canister providing protection
against the compound of concern]
P
SCBAE (any appropriate
escape-type, self-contained breathing apparatus).
Reactivity:
Forms
extremely explosive mixture with air. Violent reaction with strong oxidizers:
bromine trifluoride, chlorine trifluoride, dichromates, lithium, halogenated
compounds, and permanganates.
FIRE INFORMATION:
Vapors may travel long distances to ignition sources and flash
back. Vapors in confined areas or containers may explode in fire.
Hazard Classifications:
Health Hazard (Blue)
. . . . . . . . . . . . . . 3
Flammability (Red)
. . . . . . . . . . . . . . . 4
Reactivity (Yellow)
. . . . . . . . . . . . . . . . 0
Flash
Point: Flammable gas
Flammable
Limits in Air: LEL 12%; UEL 74%
Autoignition
Temperature: 1128°F (609°C)
FIRST AID:
GAS:
Move victim to fresh air.
Call emergency medical care. Apply artificial respiration if victim is not
breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the
substance; induce artificial respiration with the aid of a pocket mask equipped
with a one-way valve or other proper respiratory medical device. Administer
oxygen if breathing is difficult. Remove and isolate contaminated clothing and
shoes. In case of contact with substance, immediately flush skin or eyes with
running water for at least 20 minutes. In case of contact with liquefied gas,
thaw frosted parts with lukewarm water. Keep victim warm and quiet. Keep victim
under observation. Effects of contact or inhalation may be delayed. Ensure that
medical personnel are aware of the material(s) involved, and take precautions
to protect themselves.
REFRIGERATED
LIQUID:
Move victims to
fresh air. Call emergency medical care. Apply artificial respiration if victim
is not breathing. Administer oxygen if breathing is difficult. Remove and
isolate contaminated clothing and shoes. In case of contact with substance,
immediately flush skin or eyes with running water for at least 20 minutes. In
case of contact with liquefied gas, thaw frosted parts with lukewarm water.
Keep victim warm and quiet. Keep victim under observation. Effects of contact
or inhalation may be delayed. Ensure that medical personnel are aware of the
material(s) involved, and take precautions to protect themselves.
ENVIRONMENTAL REGULATIONS
•
California LOL: GKLMN
•
WHMIS, Ingredients Disclosure List (Canada): 0.1%