Chlorine trifluoride
Synonyms & Trade Names
Chlorine fluoride, Chlorotrifluoride
Exposure Limits
NIOSH REL
C 0.1 ppm (0.4 mg/m³)OSHA PEL
C 0.1 ppm (0.4 mg/m³)Measurement Methods
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.]
Molecular Weight
92.5
Boiling Point
53°F
Freezing Point
-105°F
Solubility
Reacts
Vapor Pressure
1.4 atm
Ionization Potential
13.00 eV
Specific Gravity
1.77 (Liquid at 53°F)
Flash Point
NA
Upper Explosive Limit
NA
Lower Explosive Limit
NA
Relative Gas Density
3.21
Nonflammable Gas Noncombustible Liquid, but contact with organic materials may result in SPONTANEOUS ignition.
Incompatibilities & Reactivities
Oxidizers, water, acids, combustible materials, sand, glass, metals (corrosive)
[Note: Reacts with water to form chlorine & hydrofluoric acid.]
Exposure Routes
inhalation, ingestion (liquid), skin and/or eye contact
Symptoms
Eye, skin burns (liquid or high vapor concentration); resp irritation; In Animals: lacrimation (discharge of tears), corneal ulcer; pulmonary edema
Target Organs
Skin, eyes, respiratory system
Personal Protection/Sanitation
(See protection codes)
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)
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)
Eye:Irrigate immediately
Skin:Water flush immediately
Breathing:Respiratory support
Swallow:Medical attention immediately (liquid)
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
See also
Page last reviewed: October 30, 2019
Content
source: National Institute for Occupational Safety and Health