Phosphorus trichloride
For Phosphorus trichloride, cas no. is 7719-12-2; pel (ppm) is 0.5; pel (mg/m³) is 3, verified against its source on 2026-08-05.
- Substance
- Phosphorus trichloride
- CAS No.
- 7719-12-2
- PEL (ppm)
- 0.5
- PEL (mg/m³)
- 3
What the source says
Phosphorus trichloride | 7719-12-2 | 0.5 | 3 | - |
— 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.
PEL (ppm)
osha.gov says pel (ppm) is 0.5, as of 2026-08-05.
Phosphorus trichloride | 7719-12-2 | 0.5 | 3 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (ppm) is 0.2, as of 2026-08-05.
7719122 | | Phosphorus trichloride | 0.2 | 1.5 | | 0.5 | 3
https://www.dir.ca.gov/title8/5155.html
PEL (mg/m³)
osha.gov says pel (mg/m³) is 3, as of 2026-08-05.
Phosphorus trichloride | 7719-12-2 | 0.5 | 3 | - |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (mg/m³) is 1.5, as of 2026-08-05.
7719122 | | Phosphorus trichloride | 0.2 | 1.5 | | 0.5 | 3
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html