# 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. | 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
Personal Protection & Sanitation Skin: Frostbite Eyes: Frostbite Wash skin: No recommendation Remove: When wet (flammable) Change: No recommendation Provide: Frostbite | 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
Exposure Routes inhalation, skin and/or eye contact (liquid)
Symptoms Dizziness, headache, nausea; liquid: frostbite
Target Organs central nervous system
See also: INTRODUCTION