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| Carbon tetrachloride | CAS 56-23-5 | ||
| CCl4 | RTECS FG4900000 | ||
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Synonyms & Trade Names Carbon chloride, Carbon tet, Freon® 10, Halon® 104, Tetrachloromethane |
DOT ID & Guide 1846 151 |
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Exposure Limits |
NIOSH REL: Ca ST 2 ppm (12.6 mg/m3) [60-minute] See Appendix A | ||
| OSHA PEL�: TWA 10 ppm C 25 ppm 200 ppm (5-minute maximum peak in any 4 hours) | |||
| IDLH Ca [200 ppm] | Conversion 1 ppm = 6.29 mg/m3 | ||
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Physical Description Colorless liquid with a characteristic ether-like odor. |
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MW: 153.8 |
BP: 170°F |
FRZ: -9°F |
Sol: 0.05% |
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VP: 91 mmHg |
IP: 11.47 eV |
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Sp.Gr: 1.59 |
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Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible Liquid | |||
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Incompatibilities & Reactivities Chemically-active metals such as sodium, potassium & magnesium; fluorine; aluminum [Note: Forms highly toxic phosgene gas when exposed to flames or welding arcs.] |
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Measurement Methods NIOSH 1003; OSHA 7 |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: No recommendation Provide: Eyewash, Quick drench |
First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash immediately Breathing: Respiratory support Swallow: Medical attention immediately |
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Respirator Recommendations
NIOSH At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration: (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 organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, skin; central nervous system depression; nausea, vomiting; liver, kidney injury; drowsiness, dizziness, incoordination; [potential occupational carcinogen] | |
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Target Organs
central nervous system, eyes, lungs, liver, kidneys, skin Cancer Site [in animals: liver cancer] |
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| See also: INTRODUCTION |