NIOSH Pocket Guide to Chemical Hazards


CAS 75-63-8


RTECS PA5425000
Synonyms & Trade Names
Bromotrifluoromethane, Fluorocarbon 1301, Freon® 13B1, Halocarbon 13B1, Halon® 1301, Monobromotrifluoromethane, Refrigerant 13B1, Trifluoromonobromomethane
DOT ID & Guide
1009 126


NIOSH REL: TWA 1000 ppm (6100 mg/m3)
OSHA PEL: TWA 1000 ppm (6100 mg/m3)
IDLH 40,000 ppm See: 75638 Conversion 1 ppm = 6.09 mg/m3
Physical Description
Colorless, odorless gas. [Note: Shipped as a liquefied compressed gas.]
MW: 148.9
BP: -72°F
FRZ: -267°F
Sol: 0.03%
VP: >1 atm
IP: 11.78 eV
RGasD: 5.14

Fl.P: NA

Nonflammable Gas
Incompatibilities & Reactivities
Chemically-active metals (such as calcium, powdered aluminum, zinc & magnesium)
Measurement Methods
NIOSH 1017
See: NMAM or OSHA Methods
Personal Protection & Sanitation (See protection)
Skin: Frostbite
Eyes: Frostbite
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation
Provide: Frostbite wash
First Aid (See procedures)
Eye: Frostbite
Skin: Frostbite
Breathing: Respiratory support

Important additional information about respirator selection
Respirator Recommendations NIOSH/OSHA
Up to 10,000 ppm:
(APF = 10) Any supplied-air respirator
Up to 25,000 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode
Up to 40,000 ppm:
(APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is 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
(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
Exposure Routes inhalation, skin and/or eye contact (liquid)
Symptoms Dizziness; cardiac arrhythmias; liquid: frostbite
Target Organs central nervous system, heart
See also: INTRODUCTION   See ICSC CARD: 0837