Chromic acid, di-tert-butyl ester
RTECS #
GB2900000
CAS #
Updated
March 2018
Molecular Weight
230.26
Molecular Formula
C8H18CrO4
Synonyms
Bis(tert-butyl)chromate
Chromic acid (H2CrO4), bis(1,1-dimethylethyl) ester (9CI)
t-Butyl chromate
tert-Butyl chromate
tert-Butyl chromate (ACGIH:OSHA)
tert-Butyl chromate(VI) (6CI,7CI)
Chromic acid (H2CrO4), bis(1,1-dimethylethyl) ester (9CI)
t-Butyl chromate
tert-Butyl chromate
tert-Butyl chromate (ACGIH:OSHA)
tert-Butyl chromate(VI) (6CI,7CI)
Reviews
| Organization | Standard | Reference |
|---|---|---|
| American Conference of Governmental Industrial Hygienists (ACGIH) | Threshold Limit Value-ceiling concentration 0.1 mg(CrO3)/m3 (skin) | DTLVS* TLV/BEI,2013 |
Standards and Regulations
| Organization | Standard | Reference |
|---|---|---|
| Mine Safety and Health Administration (MSHA) STANDARD | air-ceiling concentration 0.1 mg/m3 (skin) | DTLVS* 3,33,1971 |
| Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV; | ||
| Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLV | ||
| Occupational Exposure Limit-AUSTRALIA | ceiling concentration 0.1 mg(CrO3)/m3, JUL2008 | |
| Occupational Exposure Limit-AUSTRALIA | time-weighted average 0.05 mg(Cr)/m3, JUL2008 | |
| Occupational Exposure Limit-BELGIUM | time-weighted average 0.01 mg(Cr)/m3, MAR2002 | |
| Occupational Exposure Limit-BELGIUM | time-weighted average 0.1 mg(CrO3)/m3, Skin, MAR2002 | |
| Occupational Exposure Limit-FRANCE | VLE 0.1 mg(CrO3)/m3, Skin, C2 Carcinogen, FEB2006 | |
| Occupational Exposure Limit-JAPAN | Occupational Exposure Limit 0.5 mg(Cr)/m3, a2 sen, s1 sen, MAY2012 | |
| Occupational Exposure Limit-KOREA | ceiling concentration 0.1 mg/m3, skin, 2006 | |
| Occupational Exposure Limit-MEXICO | peak 0.1 mg/m3 (skin), 2004 | |
| Occupational Exposure Limit-NEW ZEALAND | ceiling concentration 0.1 mg(CrO3)/m3, skin, JAN2002 | |
| Occupational Exposure Limit-PERU | short term exposure limit 0.1 mg/m3, JUL2005 | |
| Occupational Exposure Limit-SWITZERLAND | MAK-week 0.05 mg/m3, inhal, skin, JAN2011 | |
| Occupational Exposure Limit-THAILAND | time-weighted average 0.1 mg/m3, JAN1993 | |
| Occupational Exposure Limit-THE NETHERLANDS | MAC-C 0.1 mg/m3, Skin, 2003 | |
| Occupational Exposure Limit-THE PHILIPPINES | time-weighted average 0.1 mg/m3, Skin, JAN1993 | |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction) | ceiling concentration 0.1 mg(CrO3)/m3 (skin) | CFRGBR 29,1926.55,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Federal Contractors) | ceiling concentration 0.1 mg(CrO3)/m3 (skin) | CFRGBR 41,50-204.50,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry) | ceiling concentration 0.1 mg(CrO3)/m3 (skin) | CFRGBR 29,1910.1000,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards) | ceiling concentration 0.1 mg(CrO3)/m3 (skin) | CFRGBR 29,1915.1000,1993 |
NIOSH Documentation and Surveillance
| Organization | Standard | Reference |
|---|---|---|
| National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO t-BUTYL CHROMATE-air | 10H Carcinogen time-weighted average 0.001 mg/m3 | NIOSH* DHHS #95-121,1995 |
Status in Federal Agencies
| Organization | Reference |
|---|---|
| NTP 14th Report on Carcinogens,2016:Known to be a human carcinogen |
Page last reviewed: November 16, 2018
Content
source: National Institute for Occupational Safety and Health