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| Carbon monoxide | CAS 630-08-0 | ||
| CO | RTECS FG3500000 | ||
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Synonyms & Trade Names Carbon oxide, Flue gas, Monoxide |
DOT ID & Guide 1016 119 9202 168 (cryogenic liquid) |
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Exposure Limits |
NIOSH REL: TWA 35 ppm (40 mg/m3) C 200 ppm (229 mg/m3) | ||
| OSHA PEL�: TWA 50 ppm (55 mg/m3) | |||
| IDLH 1200 ppm | Conversion 1 ppm = 1.15 mg/m3 | ||
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Physical Description Colorless, odorless gas. [Note: Shipped as a nonliquefied or liquefied compressed gas.] |
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MW: 28.0 |
BP: -313°F |
MLT: -337°F |
Sol: 2% |
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VP: >35 atm |
IP: 14.01 eV |
RGasD: 0.97 |
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Fl.P: NA (Gas) |
UEL: 74% |
LEL: 12.5% |
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| Flammable Gas | |||
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Incompatibilities & Reactivities Strong oxidizers, bromine trifluoride, chlorine trifluoride, lithium |
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Measurement Methods NIOSH 6604; OSHA ID209 |
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Personal Protection & Sanitation Skin: Frostbite Eyes: Frostbite Wash skin: No recommendation Remove: When wet (flammable) Change: No recommendation Provide: Frostbite |
First Aid (See procedures) Eye: Frostbite Skin: Frostbite Breathing: Respiratory support |
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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 |
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| 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 | |
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Target Organs
cardiovascular system, lungs, blood, central nervous system |
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| See also: INTRODUCTION |