NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005

Fluorine

CAS
7782-41-4

F2

RTECS
LM6475000
Synonyms & Trade Names

Fluorine-19
DOT ID & Guide
9192 / 167 (cryogenic liquid)
1045 / 124

Exposure
Limits

NIOSH REL: TWA 0.1 ppm (0.2 mg/m3)
OSHA PEL: TWA 0.1 ppm (0.2 mg/m3)
IDLH
25 ppm See: 7782414
Conversion
1 ppm = 1.55 mg/m3
Physical Description
Pale-yellow to greenish gas with a pungent, irritating odor.
MW: 38.0
BP: -307°F
FRZ: -363°F
Sol: Reacts
VP: >1 atm
IP: 15.70 eV
RGasD: 1.31

Fl.P: NA
UEL: NA
LEL: NA

Nonflammable Gas, but an extremely strong oxidizer.
Incompatibilities & Reactivities

Water, nitric acid, oxidizers, organic compounds [Note: Reacts violently with all combustible materials, except the metal containers in which it is shipped. Reacts with H2O to form hydrofluoric acid.]
Measurement Methods
None available
See: NMAM or OSHA Methods
Personal Protection & Sanitation
(See protection)
Skin: Prevent skin contact (liquid)
Eyes: Prevent eye contact (liquid)
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

Respirator Recommendations
NIOSH/OSHA
Up to 1 ppm:
(APF = 10) Any supplied-air respirator*
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 25 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
Important additional information about respirator selection
Exposure Routes
inhalation, skin and/or eye contact
Symptoms
Irritation eyes, nose, respiratory system; laryngeal spasm, wheezing; pulmonary edema; eye, skin burns; in animals: liver, kidney damage
Target Organs
Eyes, skin, respiratory system, liver, kidneys
See also: INTRODUCTION   See ICSC CARD: 0046   See MEDICAL TESTS: 0109