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| Chlorine trifluoride | CAS 7790-91-2 | ||
| ClF3 | RTECS FO2800000 | ||
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Synonyms & Trade Names Chlorine fluoride, Chlorotrifluoride |
DOT ID & Guide 1749 124 |
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Exposure Limits |
NIOSH REL: C 0.1 ppm (0.4 mg/m3) | ||
| OSHA PEL: C 0.1 ppm (0.4 mg/m3) | |||
| IDLH 20 ppm | 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 |
BP: 53°F |
FRZ: -105°F |
Sol: Reacts |
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VP: 1.4 atm |
IP: 13.00 eV |
RGasD: 3.21 |
Sp.Gr: 1.77 (Liquid at 53°F) |
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Fl.P: NA |
UEL: NA |
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 |
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Personal Protection & Sanitation 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) |
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 |
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| Exposure Routes inhalation, ingestion (liquid), skin and/or eye contact | |
| 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 |