Skip directly to local search Skip directly to A to Z list Skip directly to navigation Skip directly to site content Skip directly to page options
CDC Home

Enter search terms separated by spaces.

Chlorodifluoromethane

Synonyms & Trade Names
Difluorochloromethane, Fluorocarbon-22, Freon® 22, Genetron® 22, Monochlorodifluoromethane, Refrigerant 22
CAS No.
75-45-6
RTECS No.
PA6390000
DOT ID & Guide
1018 126
Formula
CHClF2
Conversion
1 ppm = 3.54 mg/m3
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
: TWA 1000 ppm (3500 mg/m3) ST 1250 ppm (4375 mg/m3)
OSHA PEL
†: none
Measurement Methods

NIOSH 1018
See: NMAM or OSHA Methods
Physical Description
Colorless gas with a faint, sweetish odor. [Note: Shipped as a liquefied compressed gas.]
MW:
86.5
BP:
-41°F
FRZ:
-231°F		 Sol(77°F): 0.3%
VP:
9.4 atm
IP:
12.45 eV
Fl.P:
NA
UEL:
NA
LEL:
NA
RGasD:
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: frostbite
Target Organs
respiratory system, cardiovascular system, central nervous system, liver, kidneys, spleen
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

Not available.

Important additional information about respirator selection

See also: INTRODUCTION   See ICSC CARD: 0049
 

Order NIOSH Publications

Contact Us:
USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30333, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO