Carbon tetrachloride
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CAS
56-23-5
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CCl4
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RTECS
FG4900000
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Synonyms & Trade Names
Carbon chloride; Carbon tet; Freon® 10; Halon® 104; Tetrachloromethane
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DOT ID & Guide
1846 / 151
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Exposure Limits
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NIOSH REL: Ca ST 2 ppm (12.6 mg/m3) [60-minute] See Appendix A
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OSHA PEL†: TWA 10 ppm C 25 ppm 200 ppm (5-minute maximum peak in any 4 hours)
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IDLH
Ca [200 ppm]
See: 56235
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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
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BP: 170°F
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FRZ: -9°F
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Sol: 0.05%
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VP: 91 mmHg
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IP: 11.47 eV
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Sp.Gr: 1.59
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Fl.P: NA
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UEL: NA
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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
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation
Provide: Eyewash, Quick drench
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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
Important additional information about respirator selection
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Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
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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
See ICSC CARD: 0024 See MEDICAL TESTS: 0041
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