Pentaborane(9)
RTECS #
RY8925000
CAS #
Updated
September 2013
Molecular Weight
63.14
Molecular Formula
B5H9
Synonyms
Nonahydropentaborane
Pentaborane
Pentaborane (ACGIH:OSHA)
Pentaborane
Pentaborane (ACGIH:OSHA)
Acute Toxicity Data and References
| Route/Organism | Dose | Effect | Reference |
|---|---|---|---|
| inhalation/Dog | lethal concentration (50 percent kill): 92 mg/m3/15M | Behavioral: Tremor Behavioral: Convulsions or effect on seizure threshold Behavioral: Ataxia | JPETAB 145,382,1964 |
| inhalation/monkey | lethal concentration (50 percent kill): 640 mg/m3/2M | Behavioral: Tremor Behavioral: Convulsions or effect on seizure threshold Behavioral: Ataxia | JPETAB 145,382,1964 |
| inhalation/mouse | lethal concentration (50 percent kill): 0.017 gm/m3/2H | TPKVAL 9,7,1967 | |
| inhalation/mouse | lethal concentration (50 percent kill): 6.8 ppm/2H | TPKVAL 9,7,1967 | |
| inhalation/mouse | lethal concentration (50 percent kill): 3400 ppb/4H | AIHAAP 19,46,1958 | |
| inhalation/rat | lethal concentration (50 percent kill): 18 mg/m3/4H | VCVN1* -,199,1988 | |
| inhalation/rat | lowest published toxic concentration: 18 mg/m3/30M | Brain and Coverings: Other degenerative changes | VCVN1* -,199,1988 |
| inhalation/rat | lethal concentration (50 percent kill): 6 ppm/4H | AIHAAP 19,46,1958 | |
| intraperitoneal/Dog | lowest published lethal dose: 15800 µg/kg | Peripheral Nerve and Sensation: Spastic paralysis with/without sensory change Behavioral: Tremor Behavioral: Coma | STGNBT -,191,1999 |
| intraperitoneal/rat | lethal dose (50 percent kill): 11100 µg/kg | 14KTAK -,693,1964 |
Other Multiple Dose Data and References
| Route/Organism | Dose | Effect | Reference |
|---|---|---|---|
| inhalation/Dog | lowest published toxic concentration: 3700 ppb/1H/3D- intermittent | Behavioral: Convulsions or effect on seizure threshold Related to Chronic Data: Death in the "MULTIPLE DOSE" data type field | TXAPA9 6,121,1964 |
| inhalation/Dog | lowest published toxic concentration: 2.6 mg/m3/4W- intermittent | Related to Chronic Data: Death in the "MULTIPLE DOSE" data type field | VCVN1* -,199,1988 |
| inhalation/hamster | lowest published toxic concentration: 2.6 mg/m3/4W- intermittent | Related to Chronic Data: Death in the "MULTIPLE DOSE" data type field | VCVN1* -,199,1988 |
| inhalation/mouse | lowest published toxic concentration: 3700 ppb/1H/4D- intermittent | Behavioral: Convulsions or effect on seizure threshold Related to Chronic Data: Death in the "MULTIPLE DOSE" data type field | TXAPA9 6,121,1964 |
| inhalation/rabbit | lowest published toxic concentration: 2.6 mg/m3/4W- intermittent | Related to Chronic Data: Death in the "MULTIPLE DOSE" data type field | VCVN1* -,199,1988 |
| inhalation/rat | lowest published toxic concentration: 2.6 mg/m3/4W- intermittent | Related to Chronic Data: Death in the "MULTIPLE DOSE" data type field | VCVN1* -,199,1988 |
| inhalation/rat | lowest published toxic concentration: 67 mg/m3/5M/5D- intermittent | Behavioral: Tetany Eye: Miosis (pupilliary constriction) Eye: Conjunctiva irritation | VCVN1* -,199,1988 |
| inhalation/rat | lowest published toxic concentration: 30 mg/m3/5D- intermittent | Behavioral: Tetany Eye: Miosis (pupilliary constriction) Eye: Conjunctiva irritation | VCVN1* -,199,1988 |
| inhalation/rat | lowest published toxic concentration: 7.8 mg/m3/60M/5D- intermittent | Behavioral: Tetany Eye: Miosis (pupilliary constriction) Eye: Conjunctiva irritation | VCVN1* -,199,1988 |
Reviews
| Organization | Standard | Reference |
|---|---|---|
| American Conference of Governmental Industrial Hygienists (ACGIH) | Threshold Limit Value-time-weighted average 0.005 ppm;short term exposure limit 0.015 ppm | DTLVS* TLV/BEI,2013 |
Standards and Regulations
| Organization | Standard | Reference |
|---|---|---|
| Mine Safety and Health Administration (MSHA) STANDARD-air | time-weighted average 0.005 ppm (0.01 mg/m3) | DTLVS* 3,197,1971 |
| 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 0.005 ppm (0.013 mg/m3), short term exposure limit 0.015 ppm (0.039 mg/m3), JUL2008 | |
| Occupational Exposure Limit-AUSTRIA | MAK-TMW 0.005 ppm (0.01 mg/m3);KZW 0.01 ppm (0.02 mg/m3), 2007 | |
| Occupational Exposure Limit-BELGIUM | time-weighted average 0.005 ppm (0.013 mg/m3), MAR2002 | |
| Occupational Exposure Limit-BELGIUM | short term exposure limit 0.015 ppm (0.04 mg/m3), MAR2002 | |
| Occupational Exposure Limit-DENMARK | time-weighted average 0.005 ppm (0.01 mg/m3), MAY2011 | |
| Occupational Exposure Limit-FINLAND | time-weighted average 0.005 ppm (0.014 mg/m3), short term exposure limit 0.015 ppm (0.041 mg/m3), NOV2011 | |
| Occupational Exposure Limit-FRANCE | VME 0.005 ppm (0.01 mg/m3), FEB2006 | |
| Occupational Exposure Limit-GERMANY | MAK 0.005 ppm (0.013 mg/m3), 2011 | |
| Occupational Exposure Limit-ICELAND | time-weighted average 0.005 ppm (0.01 mg/m3), NOV2011 | |
| Occupational Exposure Limit-KOREA | time-weighted average 0.005 ppm (0.01 mg/m3), short term exposure limit 0.015 ppm (0.03 mg/m3), 2006 | |
| Occupational Exposure Limit-MEXICO | time-weighted average 0.005 ppm (0.01 mg/m3);short term exposure limit 0.015 ppm, 2004 | |
| Occupational Exposure Limit-NEW ZEALAND | time-weighted average 0.005 ppm (0.013 mg/m3), JAN2002 | |
| Occupational Exposure Limit-PERU | time-weighted average 0,005 ppm (0,013 mg/m3); short term exposure limit 0,015 ppm (0,039 mg/m3), JUL2005 | |
| Occupational Exposure Limit-SWITZERLAND | MAK-week 0.005 ppm (0.01 mg/m3), KZG-week 0.01 ppm (0.02 mg/m3), JAN2011 | |
| Occupational Exposure Limit-THE NETHERLANDS | MAC-TGG 0.01 mg/m3, 2003 | |
| Occupational Exposure Limit-THE PHILIPPINES | time-weighted average 0.005 ppm (0.01 mg/m3), JAN1993 | |
| Occupational Exposure Limit-TURKEY | time-weighted average 0.01 mg/m3, JAN1993 | |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction) | 8H time-weighted average 0.005 ppm (0.01 mg/m3) | CFRGBR 29,1926.55,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Federal Contractors) | 8H time-weighted average 0.005 ppm (0.01 mg/m3) | CFRGBR 41,50-204.50,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry) | 8H time-weighted average 0.005 ppm (0.01 mg/m3) | CFRGBR 29,1910.1000,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards) | 8H time-weighted average 0.005 ppm (0.01 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 PENTABORANE-air | 10H time-weighted average 0.005 ppm;short term exposure limit 0.015 ppm | NIOSH* DHHS #92-100,1992 |
Status in Federal Agencies
| Organization | Reference |
|---|---|
| EPA TSCA Section 8(b) CHEMICAL INVENTORY | |
| On EPA IRIS database |
Page last reviewed: November 16, 2018
Content
source: National Institute for Occupational Safety and Health