Methane, dibromodifluoro-
RTECS #
PA7525000
CAS #
Updated
September 2013
Molecular Weight
209.83
Molecular Formula
CBr2F2
Synonyms
Difluorodibromomethane
Difluorodibromomethane (ACGIH:OSHA)
Freon 12-B2
Halon 1202
Difluorodibromomethane (ACGIH:OSHA)
Freon 12-B2
Halon 1202
Acute Toxicity Data and References
Route/Organism | Dose | Effect | Reference |
---|---|---|---|
inhalation/mouse | lethal concentration (50 percent kill): 140 gm/m3/2H | Behavioral: Rigidity (includes catalepsy) Liver: Other changes Kidney, Ureter, and Bladder: Other changes | TLSMA6 111,10,1975 |
inhalation/mouse | lethal concentration (50 percent kill): 259200 mg/m3/2H | VCVGH* -,623,1990 | |
inhalation/rat | lethal concentration (50 percent kill): 210600 mg/m3/4H | VCVGH* -,623,1990 | |
inhalation/rat | Lowest published lethal concentration: 470000 mg/m3/15M | VCVGH* -,623,1990 |
Reviews
Organization | Standard | Reference |
---|---|---|
American Conference of Governmental Industrial Hygienists (ACGIH) | Threshold Limit Value-time-weighted average 100 ppm | DTLVS* TLV/BEI,2013 |
Standards and Regulations
Organization | Standard | Reference |
---|---|---|
Mine Safety and Health Administration (MSHA) STANDARD-air | time-weighted average 100 ppm (860 mg/m3) | DTLVS* 3,86,1971 |
Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV; | ||
Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLV | ||
Occupational Exposure Limit-AUSTRALIA | time-weighted average 100 ppm (858 mg/m3), JUL2008 | |
Occupational Exposure Limit-AUSTRIA | MAK-TMW 100 ppm (860 mg/m3);KZW 400 ppm (3440 mg/m3), 2007 | |
Occupational Exposure Limit-BELGIUM | time-weighted average 100 ppm (870 mg/m3), MAR2002 | |
Occupational Exposure Limit-DENMARK | time-weighted average 100 ppm (860 mg/m3), MAY2011 | |
Occupational Exposure Limit-FINLAND | time-weighted average 100 ppm (870 mg/m3), short term exposure limit 150 ppm (1300 mg/m3), NOV2011 | |
Occupational Exposure Limit-FRANCE | VME 100 ppm (860 mg/m3), FEB2006 | |
Occupational Exposure Limit-ICELAND | time-weighted average 100 ppm (860 mg/m3), NOV2011 | |
Occupational Exposure Limit-KOREA | time-weighted average 100 ppm (860 mg/m3), 2006 | |
Occupational Exposure Limit-MEXICO | time-weighted average 100 ppm (860 mg/m3);short term exposure limit 150 ppm (1290 mg/m3), 2004 | |
Occupational Exposure Limit-NEW ZEALAND | time-weighted average 100 ppm (858 mg/m3), JAN2002 | |
Occupational Exposure Limit-PERU | time-weighted average 100 ppm (858 mg/m3), JUL2005 | |
Occupational Exposure Limit-SWITZERLAND | MAK-week 100 ppm (860 mg/m3), KZG-week 200 ppm (1720 mg/m3), JAN2011 | |
Occupational Exposure Limit-THE NETHERLANDS | MAC-TGG 860 mg/m3, 2003 | |
Occupational Exposure Limit-THE PHILIPPINES | time-weighted average 100 ppm (860 mg/m3), JAN1993 | |
Occupational Exposure Limit-TURKEY | time-weighted average 100 ppm (860 mg/m3), JAN1993 | |
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction) | 8H time-weighted average 100 ppm (860 mg/m3) | CFRGBR 29,1926.55,1994 |
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Federal Contractors) | 8H time-weighted average 100 ppm (860 mg/m3) | CFRGBR 41,50-204.50,1994 |
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry) | 8H time-weighted average 100 ppm (860 mg/m3) | CFRGBR 29,1910.1000,1994 |
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards) | 8H time-weighted average 100 ppm (860 mg/m3) | CFRGBR 29,1915.1000,1993 |
NIOSH Documentation and Surveillance
Organization | Standard | Reference |
---|---|---|
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO DIFLUORODIBROMOMETHANE-air | 10H time-weighted average 100 ppm | NIOSH* DHHS #92-100,1992 |
National Occupational Exposure Survey 1983 | Hazard Code 25515; Number of Industries 1; Total Number of Facilities 7; Number of Occupations 1; Total Number of Employees Exposed 28 | |
National Occupational Hazard Survey 1974 | Hazard Code 25515; Number of Industries 2; Total Number of Facilities 40; Number of Occupations 3; Total Number of Employees Exposed 2234 |
Status in Federal Agencies
Page last reviewed: November 16, 2018
Content
source: National Institute for Occupational Safety and Health