Chlorine trifluoride
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CAS
7790-91-2
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ClF3
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RTECS
FO2800000
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Synonyms & Trade Names
Chlorine fluoride, Chlorotrifluoride
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DOT ID & Guide
1749 / 124
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Exposure
Limits
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NIOSH REL: C 0.1 ppm (0.4 mg/m3)
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OSHA PEL: C 0.1 ppm (0.4 mg/m3)
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IDLH
20 ppm
See: 7790912
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Conversion
1 ppm = 3.78 mg/m3
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Physical Description
Colorless gas or a greenish-yellow liquid (below 53°F) with a somewhat sweet, suffocating odor. [Note: Shipped as a liquefied compressed gas.]
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MW: 92.5
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BP: 53°F
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FRZ: -105°F
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Sol: Reacts
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VP: 1.4 atm
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IP: 13.00 eV
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RGasD: 3.21
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Sp.Gr: 1.77 (Liquid at 53°F)
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Fl.P: NA
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UEL: NA
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LEL: NA
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Nonflammable Gas Noncombustible Liquid, but contact with organic materials may result in SPONTANEOUS ignition.
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Incompatibilities & Reactivities
Oxidizers, water, acids, combustible materials, sand, glass, metals (corrosive) [Note: Reacts with water to form chlorine & hydrofluoric acid.]
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Measurement Methods
None available
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated (liquid)
Remove: When wet or contaminated (liquid)
Change: No recommendation
Provide: Eyewash (liquid), Quick drench (liquid)
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately (liquid)
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Respirator Recommendations
NIOSH/OSHA
Up to 2.5 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode£
Up to 5 ppm:
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece
Up to 20 ppm:
(APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
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
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Exposure Routes
inhalation, ingestion (liquid), skin and/or eye contact
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Symptoms
Eye, skin burns (liquid or high vapor concentration); respiratory irritation; in animals: lacrimation (discharge of tears), corneal ulcer; pulmonary edema
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Target Organs
Skin, eyes, respiratory system
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See also: INTRODUCTION
See ICSC CARD: 0656 See MEDICAL TESTS: 0046
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