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 |
FormulaCHClF2 |
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 |
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Fl.P: NA |
UEL: NA |
LEL: NA |
RGasD: 3.11 |
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| 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 |
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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
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Respirator Recommendations Not available.
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0049
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