Acetone cyanohydrin — CAS 75-86-5 — workplace exposure limit
What is the niosh rel (ppm) for Acetone cyanohydrin — CAS 75-86-5 — workplace exposure limit?
For Acetone cyanohydrin, niosh rel (ppm) is C 1; niosh rel (mg/m³) is 4; cas no. is 75-86-5, verified against its source on 2026-09-08.
NIOSH REL C 1 ppm (4 mg/m3) [15-minute]
— cdc.gov, retrieved 2026-09-08
- Substance
- Acetone cyanohydrin verified
- CAS No.
- 75-86-5 verified
- NIOSH REL (ppm)
- C 1 verified
- NIOSH REL (mg/m³)
- 4 verified
- PEL (ppm)
- 4.7 per dir.ca.gov
- PEL (mg/m³)
- 5 per dir.ca.gov
- Ceiling notation
- the values given in the PEL columns are ceiling values per dir.ca.gov
Where each value comes from
This source states these in separate places, so each value is shown with the passage that states it.
Substance
CDC - NIOSH Pocket Guide to Chemical Hazards - Acetone cyanohydrin
CAS No.
CAS No. 75-86-5
— all from cdc.gov, retrieved 2026-09-08
What dir.ca.gov says
75865 | | Acetone cyanohydrin as CN | 4.7 | 5 | C
— dir.ca.gov, retrieved 2026-09-28
Sources
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0005.html
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html