Boron trifluoride
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CAS
7637-07-2
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BF3
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RTECS
ED2275000
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Synonyms & Trade Names
Boron fluoride, Trifluoroborane
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DOT ID & Guide
1008 / 125
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Exposure
Limits
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NIOSH REL: C 1 ppm (3 mg/m3)
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OSHA PEL: C 1 ppm (3 mg/m3)
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IDLH
25 ppm
See: 7637072
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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
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BP: -148°F
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FRZ: -196°F
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Sol: 106% (in cold H2O)
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VP: >50 atm
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IP: 15.50 eV
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RGasD: 2.38
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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
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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
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: No recommendation
Eyes: No recommendation
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation
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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
Important additional information about respirator selection
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Exposure Routes
inhalation, skin and/or eye contact
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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
See ICSC CARD: 0231 See MEDICAL TESTS: 0027
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