Acetic anhydride
For Acetic anhydride, cas no. is 108-24-7; pel (ppm) is 5; pel (mg/m³) is 20, verified against its source on 2026-08-05.
- Substance
- Acetic anhydride
- CAS No.
- 108-24-7
- PEL (ppm)
- 5
- PEL (mg/m³)
- 20
What the source says
Acetic anhydride | 108-24-7 | 5 | 20 | - |
— osha.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.
Substance
osha.gov says substance is Acetic anhydride, as of 2026-08-05.
Acetic anhydride | 108-24-7 | 5 | 20 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says substance is Acetic Anhydride, as of 2026-08-05.
108247 | | Acetic Anhydride | 5 | 20 | C
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html