---
type: threshold
id: manganese-compounds-as-mn
asset: workplace-exposure-limits
title: "Manganese compounds (as Mn) — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
source_quote: "Manganese compounds (as Mn) | 7439-96-5 | - | (C)5 | - |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Manganese compounds (as Mn)"
cas_number: "7439-96-5"
pel_mgm3: "(C)5"
verified: true
---
**Substance:** Manganese compounds (as Mn)

**CAS No.:** 7439-96-5

**PEL (mg/m³):** (C)5

> Manganese compounds (as Mn) | 7439-96-5 | - | (C)5 | - |

Source: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1>