Carbon monoxide |
Synonyms & Trade Names Carbon oxide, Flue gas, Monoxide |
CAS No. 630-08-0 |
RTECS No. FG3500000 |
DOT ID & Guide 1016 119
9202 168 (cryogenic liquid) |
FormulaCO |
Conversion 1 ppm = 1.15 mg/m3 |
IDLH 1200 ppm
See: 630080 |
Exposure Limits NIOSH REL: TWA 35 ppm (40 mg/m3) C 200 ppm (229 mg/m3)
OSHA PEL†: TWA 50 ppm (55 mg/m3) |
Measurement Methods
NIOSH 6604;
OSHA ID209 , ID210
See: NMAM or OSHA Methods |
Physical Description Colorless, odorless gas. [Note: Shipped as a nonliquefied or liquefied compressed gas.] |
MW: 28.0 |
BP: -313°F |
MLT: -337°F |
Sol: 2% |
VP: >35 atm |
IP: 14.01 eV |
|
Fl.P: NA (Gas) |
UEL: 74% |
LEL: 12.5% |
RGasD: 0.97 |
|
| Flammable Gas |
Incompatibilities & Reactivities Strong oxidizers, bromine trifluoride, chlorine trifluoride, lithium |
Exposure Routes inhalation, skin and/or eye contact (liquid) |
Symptoms headache, tachypnea, nausea, lassitude (weakness, exhaustion), dizziness, confusion, hallucinations; cyanosis; depressed S-T segment of electrocardiogram, angina, syncope |
Target Organs cardiovascular system, lungs, blood, central nervous system |
|
Personal Protection/Sanitation (See protection codes)
Skin: Frostbite
Eyes: Frostbite
Wash skin: No recommendation
Remove: When wet (flammable)
Change: No recommendation
Provide: Frostbite wash |
First Aid (See procedures)
Eye: Frostbite
Skin: Frostbite
Breathing: Respiratory support
|
Respirator Recommendations NIOSH Up to 350 ppm:
(APF = 10) Any supplied-air respirator Up to 875 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 1200 ppm:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern†
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern†
Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0023 See MEDICAL TESTS: 0040 |
