|
|
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dichloromonofluoromethane |
CAS 75-43-4 | ||
CHCl2F |
RTECS PA8400000 | ||
|
Synonyms & Trade Names Dichlorofluoromethane; Fluorodichloromethane; Freon® 21; Genetron® 21; Halon® 112; Refrigerant 21 |
DOT ID & Guide 1029 126 |
||
Exposure
|
NIOSH REL: TWA 10 ppm (40 mg/m3) | ||
| OSHA PEL†: TWA 1000 ppm (4200 mg/m3) | |||
| IDLH 5000 ppm See: 75434 | Conversion 1 ppm = 4.21 mg/m3 | ||
|
Physical Description Colorless gas with a slight, ether-like odor. [Note: A liquid below 48°F. Shipped as a liquefied compressed gas.] |
|||
|
MW: 102.9 |
BP: 48°F |
FRZ: -211°F |
Sol(86°F): 0.7% |
|
VP(70°F): 1.6 atm |
IP: 12.39 eV |
RGasD: 3.57 |
|
|
Fl.P: NA |
UEL: NA |
LEL: NA |
|
| Nonflammable Gas | |||
|
Incompatibilities & Reactivities Chemically-active metals such as sodium, potassium, calcium, powdered aluminum, zinc & magnesium; acid; acid fumes |
|||
|
Measurement Methods NIOSH 2516 See: NMAM or OSHA Methods |
|
Personal Protection & Sanitation (See protection) 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 |
|
Important additional information about respirator selection Respirator Recommendations NIOSH Up to 100 ppm: (APF = 10) Any supplied-air respirator Up to 250 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 500 ppm: (APF = 50) Any self-contained breathing apparatus with a full facepiece (APF = 50) Any supplied-air respirator with a full facepiece Up to 5000 ppm: (APF = 1000) Any supplied-air respirator 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 Asphyxia, cardiac arrhythmias, cardiac arrest; liquid: frostbite | |
|
Target Organs
respiratory system, cardiovascular system |
|
| See also: INTRODUCTION See ICSC CARD: 1106 |