tert-Butyl chromate |
Synonyms & Trade Names di-tert-Butyl ester of chromic acid |
CAS No. 1189-85-1 |
RTECS No. GB2900000 |
DOT ID & Guide |
Formula[(CH3)3CO]2CrO2 |
Conversion |
IDLH Ca [15 mg/m3 {as Cr(VI)}]
See: 1189851 |
Exposure Limits NIOSH REL: Ca TWA 0.001 mg Cr(VI)/m3 See Appendix A See Appendix C
OSHA PEL: TWA 0.005 mg CrO3/m3 [skin] See Appendix C |
Measurement Methods
NIOSH 7604;
OSHA ID103 , ID215
See: NMAM or OSHA Methods |
Physical Description Liquid. [Note: Solidifies at 32-23°F.] |
MW: 230.3 |
BP: ? |
FRZ: 32-23°F |
Sol: ? |
VP: ? |
IP: ? |
Sp.Gr: ? |
Fl.P: ? |
UEL: ? |
LEL: ? |
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Incompatibilities & Reactivities Reducing agents, moisture, acids, alcohols, hydrazine, combustible materials |
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin, respiratory system; eye, skin burns; drowsiness, muscle weak; skin ulcers; lung changes; [potential occupational carcinogen] |
Target Organs Eyes, skin, respiratory system, central nervous system |
Cancer Site[lung cancer] |
Personal Protection/Sanitation (See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated/Daily
Remove: When wet or contaminated
Change: No recommendation
Provide: Eyewash, Quick drench |
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately |
Respirator Recommendations NIOSH At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(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 having an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 1533 See MEDICAL TESTS: 0031 |
