NIOSH Pocket Guide to Chemical Hazards

Vinylidene fluoride

CAS 75-38-7

CH2=CF2

RTECS KW0560000
Synonyms & Trade Names
Difluoro-1,1-ethylene; 1,1-Difluoroethene; 1,1-Difluoroethylene; Halocarbon 1132A; VDF; Vinylidene difluoride
DOT ID & Guide
1959 116P

Exposure
Limits

NIOSH REL: TWA 1 ppm C 5 ppm [use 1910.1017]
OSHA PEL: none
IDLH N.D. See: IDLH INDEX Conversion 1 ppm = 2.62 mg/m3
Physical Description
Colorless gas with a faint, ethereal odor. [Note: Shipped as a liquefied compressed gas.]
MW: 64.0
BP: -122°F
FRZ: -227°F
Sol: Insoluble
VP: 35.2 atm
IP: 10.29 eV
RGasD: 2.21

Fl.P: NA (Gas)
UEL: 21.3%
LEL: 5.5%

Flammable Gas
Incompatibilities & Reactivities
Oxidizers, aluminum chloride [Note: Violent reaction with hydrogen chloride when heated under pressure.]
Measurement Methods
NIOSH 3800
See: NMAM or OSHA Methods
Personal Protection & Sanitation (See protection)
Skin: Frostbite
Eyes: Frostbite
Wash skin: No recommendation
Remove: When wet (flammable)
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
Up to 10 ppm:
(APF = 10) Any chemical cartridge respirator with organic vapor cartridge(s)
(APF = 10) Any supplied-air respirator
Up to 25 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode
(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)
Up to 50 ppm:
(APF = 50) Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s)
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister
(APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and organic vapor cartridge(s)
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece
Up to 200 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 organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, skin and/or eye contact (liquid)
Symptoms Dizziness, headache, nausea; liquid: frostbite
Target Organs central nervous system
See also: INTRODUCTION   See ICSC CARD: 0687