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| Difluorodibromomethane | CAS 75-61-6 | ||
| CBr2F2 | RTECS PA7525000 | ||
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Synonyms & Trade Names Dibromodifluoromethane, Freon® 12B2, Halon® 1202 |
DOT ID & Guide 1941 171 |
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Exposure Limits |
NIOSH REL: TWA 100 ppm (860 mg/m3) | ||
| OSHA PEL: TWA 100 ppm (860 mg/m3) | |||
| IDLH 2000 ppm | Conversion 1 ppm = 8.58 mg/m3 | ||
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Physical Description Colorless, heavy liquid or gas (above 76°F) with a characteristic odor. |
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MW: 209.8 |
BP: 76°F |
FRZ: -231°F |
Sol: Insoluble |
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VP: 620 mmHg |
IP: 11.07 eV |
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Sp.Gr(59°F): 2.29 |
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Fl.P: NA |
UEL: NA |
LEL: NA |
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Noncombustible Liquid Nonflammable Gas |
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Incompatibilities & Reactivities Chemically-active metals such as sodium, potassium, calcium, powdered aluminum, zinc & magnesium |
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Measurement Methods NIOSH 1012; OSHA 7 |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: No recommendation Remove: When wet or contaminated Change: No recommendation |
First Aid (See procedures) Eye: Irrigate immediately Skin: Water flush immediately Breathing: Respiratory support Swallow: Medical attention immediately |
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Respirator Recommendations
NIOSH/OSHA Up to 1000 ppm: (APF = 10) Any supplied-air respirator Up to 2000 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 |
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| Exposure Routes inhalation, ingestion, skin and/or eye contact | |
| Symptoms In animals: irritation respiratory system; central nervous system symptoms; liver damage | |
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Target Organs
respiratory system, central nervous system, liver |
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| See also: INTRODUCTION |