2-Butoxyethanol — CAS 111-76-2 — workplace exposure limit
What is the pel (ppm) for 2-Butoxyethanol — CAS 111-76-2 — workplace exposure limit?
For 2-Butoxyethanol, pel (ppm) is disputed: 50 per osha.gov, 20 per dir.ca.gov; pel (mg/m³) is disputed: 240 per osha.gov, 97 per dir.ca.gov; cas no. is 111-76-2, verified against its source on 2026-08-05.
2-Butoxyethanol | 111-76-2 | 50 | 240 | X |
— osha.gov, retrieved 2026-08-05
- Substance
- 2-Butoxyethanol verified
- CAS No.
- 111-76-2 verified
- PEL (ppm)
- 50 sources disagree
- PEL (mg/m³)
- 240 sources disagree
- NIOSH REL (ppm)
- TWA 5 per cdc.gov
- NIOSH REL (mg/m³)
- 24 per cdc.gov
What cdc.gov says
NIOSH REL TWA 5 ppm (24 mg/m3) [skin]
— cdc.gov, retrieved 2026-09-08
Substance
CDC - NIOSH Pocket Guide to Chemical Hazards - 2-Butoxyethanol
CAS No.
CAS No. 111-76-2
What dir.ca.gov says
111762 | | Glycol monobutyl ether; see 2-Butoxyethanol
— dir.ca.gov, retrieved 2026-08-05
Sources disagree
More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.
PEL (ppm)
osha.gov says pel (ppm) is 50, as of 2026-08-05.
2-Butoxyethanol | 111-76-2 | 50 | 240 | X |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (ppm) is 20, as of 2026-08-05.
111762 | S | 2-Butoxyethanol (EGBE) | 20 | 97
https://www.dir.ca.gov/title8/5155.html
PEL (mg/m³)
osha.gov says pel (mg/m³) is 240, as of 2026-08-05.
2-Butoxyethanol | 111-76-2 | 50 | 240 | X |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (mg/m³) is 97, as of 2026-08-05.
111762 | S | 2-Butoxyethanol (EGBE) | 20 | 97
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0070.html
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html