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Vinylidene fluoride

Synonyms & Trade Names
1,1-Difluoroethene, Difluoro-1,1-ethylene, 1,1-Difluoroethylene, Halocarbon 1132A, VDF, Vinylidene difluoride
CAS No.
75-38-7
RTECS No.
KW0560000
DOT ID & Guide
1959 116P
Formula
CH2=CF2
Conversion
1 ppm = 2.62 mg/m3
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
TWA 1 ppm C 5 ppm [use 1910.1017]
OSHA PEL
none
Measurement Methods
NIOSH 3800
See: NMAM or OSHA Methods
Physical Description
Colorless gas with a faint, ethereal odor. [Note: Shipped as a liquefied compressed gas.]
Molecular Weight
64.0
Boiling Point
-122°F
Freezing Point
-227°F
Solubility
Insoluble
Vapor Pressure
35.2 atm
Ionization Potential
10.29 eV
Flash Point
NA (Gas)
Upper Exposive Limit
21.3%
Lower Explosive Limit
5.5%
Relative Gas Density
2.21
Flammable Gas
Incompatibilities & Reactivities
Oxidizers, aluminum chloride [Note: Violent reaction with hydrogen chloride when heated under pressure.]
Exposure Routes
inhalation, skin and/or eye contact (liquid)
Symptoms
dizziness, headache, nausea; liquid: frostbite
Target Organs
central nervous system
Personal Protection/Sanitation
(See protection codes)
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
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

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0687
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