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| Boron trifluoride | CAS 7637-07-2 | ||
| BF3 | RTECS ED2275000 | ||
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Synonyms & Trade Names Boron fluoride, Trifluoroborane |
DOT ID & Guide 1008 125 |
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Exposure Limits |
NIOSH REL: C 1 ppm (3 mg/m3) | ||
| OSHA PEL: C 1 ppm (3 mg/m3) | |||
| IDLH 25 ppm | Conversion 1 ppm = 2.77 mg/m3 | ||
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Physical Description Colorless gas with a pungent, suffocating odor. [Note: Forms dense white fumes in moist air. Shipped as a nonliquefied compressed gas.] |
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MW: 67.8 |
BP: -148°F |
FRZ: -196°F |
Sol: 106% (in cold H2O) |
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VP: >50 atm |
IP: 15.50 eV |
RGasD: 2.38 |
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Fl.P: NA |
UEL: NA |
LEL: NA |
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| Nonflammable Gas | |||
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Incompatibilities & Reactivities Alkali metals, calcium oxide [Note: Hydrolyzes in moist air or hot water to form boric acid, hydrogen fluoride & fluoboric acid.] |
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Measurement Methods None available |
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Personal Protection & Sanitation Skin: No recommendation Eyes: No recommendation Wash skin: No recommendation Remove: No recommendation Change: No recommendation |
First Aid (See procedures) Eye: Irrigate immediately Skin: Water flush immediately Breathing: Respiratory support |
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Respirator Recommendations
NIOSH/OSHA Up to 10 ppm: (APF = 10) Any supplied-air respirator* Up to 25 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode*/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece 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, skin and/or eye contact | |
| Symptoms Irritation eyes, skin, nose, respiratory system; epistaxis (nosebleed); eye, skin burns; in animals: pneumonitis; kidney damage | |
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Target Organs
Eyes, skin, respiratory system, kidneys |
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| See also: INTRODUCTION |