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Dichlorotetrafluoroethane

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Synonyms & Trade Names
1,2-Dichlorotetrafluoroethane, Freon® 114, Genetron® 114, Halon® 242, Refrigerant 114
CAS No.
76-14-2
RTECS No.
KI1101000
DOT ID & Guide
1958 126
Formula
CClF₂CClF₂
Conversion
1 ppm = 6.99 mg/m3
IDLH
15,000 ppm
See: 76142
Exposure Limits
NIOSH REL
TWA 1000 ppm (7000 mg/m3)
OSHA PEL
TWA 1000 ppm (7000 mg/m3)
Measurement Methods
NIOSH 1018
See: NMAM or OSHA Methods
Physical Description
Colorless gas with a faint, ether-like odor at high concentrations. [Note: A liquid below 38°F. Shipped as a liquefied compressed gas.]
Molecular Weight
170.9
Boiling Point
38°F
Freezing Point
-137°F
Solubility
0.01%
Vapor Pressure
(70°F): 1.9 atm
Ionization Potential
12.20 eV
Flash Point
NA
Upper Explosive Limit
NA
Lower Explosive Limit
NA
Relative Gas Density
5.93
Nonflammable Gas
Incompatibilities & Reactivities
Chemically-active metals such as sodium, potassium, calcium, powdered aluminum, zinc & magnesium; acids; acid fumes
Exposure Routes
inhalation, skin and/or eye contact (liquid)
Symptoms
irritation respiratory system; asphyxia; cardiac arrhythmias, cardiac arrest; liquid: frostbite
Target Organs
respiratory system, cardiovascular system
Personal Protection/Sanitation
(See protection codes)
Skin:Frostbite
Eyes:Frostbite
Wash skin:No recommendation
Remove:No recommendation
Change:No recommendation
Provide:Frostbite wash
First Aid
(See procedures)
Eye:Frostbite
Skin:Frostbite
Breathing:Respiratory support
Respirator Recommendations

NIOSH/OSHA

Up to 10000 ppm:
(APF = 10) Any supplied-air respirator

Up to 15000 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece

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: 0649
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health