Chlorodifluoromethane
Synonyms & Trade Names
Difluorochloromethane, Fluorocarbon-22, Freon® 22, Genetron® 22, Monochlorodifluoromethane, Refrigerant 22Exposure Limits
NIOSH REL
TWA 1000 ppm (3500 mg/m3) ST 1250 ppm (4375 mg/m3)OSHA PEL
none See Appendix GPhysical Description
Colorless gas with a faint, sweetish odor. [Note: Shipped as a liquefied compressed gas.]Molecular Weight
86.5Boiling Point
-41°FFreezing Point
-231°FSolubility
(77°F): 0.3%Vapor Pressure
9.4 atmIonization Potential
12.45 eVFlash Point
NAUpper Exposive Limit
NALower Explosive Limit
NARelative Gas Density
3.11
Nonflammable Gas
Incompatibilities & Reactivities
Alkalis, alkaline earth metals (e.g., powdered aluminum, sodium, potassium, zinc)Exposure Routes
inhalation, skin and/or eye contact (liquid)Symptoms
irritation respiratory system; confusion, drowsiness, ringing in ears; heart palpitations, cardiac arrhythmias; asphyxia; liver, kidney, spleen injury; liquid: frostbiteTarget Organs
respiratory system, cardiovascular system, central nervous system, liver, kidneys, spleenPersonal Protection/Sanitation
(See protection codes)Skin:Frostbite
Eyes:Frostbite
Wash skin:No recommendation
Remove:No recommendation
Change:No recommendation
Provide:Frostbite wash
Respirator Recommendations
Not available.
- Page last reviewed:April 11, 2016
- Page last updated:April 11, 2016
- Content source:
- National Institute for Occupational Safety and Health (NIOSH) Education and Information Division