Carbon tetrachloride |
Synonyms & Trade Names Carbon chloride, Carbon tet, Freon® 10, Halon® 104, Tetrachloromethane |
CAS No. 56-23-5 |
RTECS No. FG4900000 |
DOT ID & Guide 1846 151 |
FormulaCCl4 |
Conversion 1 ppm = 6.29 mg/m3 |
IDLH Ca [200 ppm]
See: 56235 |
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) |
Measurement Methods
NIOSH 1003;
OSHA 7
See: NMAM or OSHA Methods |
Physical Description Colorless liquid with a characteristic ether-like odor. |
MW: 153.8 |
BP: 170°F |
FRZ: -9°F |
Sol: 0.05% |
VP: 91 mmHg |
IP: 11.47 eV |
Sp.Gr: 1.59 |
Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible Liquid |
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.] |
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] |
Target Organs central nervous system, eyes, lungs, liver, kidneys, skin |
Cancer Site[in animals: liver cancer] |
Personal Protection/Sanitation (See protection codes)
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 |
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
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0024 See MEDICAL TESTS: 0041 |
