# Oleum (65% to 80% by weight; also called Fuming Sulfuric Acid) — OSHA PSM vs EPA RMP: chemical threshold quantities side by side

For Oleum (65% to 80% by weight; also called Fuming Sulfuric Acid), cas no. is 8014-95-7; osha psm tq (lbs) is 1,000, verified against its source on 2026-08-15.

- **Substance:** Oleum (65% to 80% by weight; also called Fuming Sulfuric Acid) _(verified: appears in the quote below)_
- **CAS No.:** 8014-95-7 _(verified: appears in the quote below)_
- **OSHA PSM TQ (lbs):** 1,000 _(verified: appears in the quote below)_
- **EPA RMP TQ (lbs):** 10,000 _(per ecfr.gov, not stated by the source above)_
- **RMP category:** toxic _(per ecfr.gov, not stated by the source above)_
- **RMP basis for listing:** e _(per ecfr.gov, not stated by the source above)_

## What the source says

> Oleum (65% to 80% by weight; also called Fuming Sulfuric Acid) | 8014-95-7 | 1,000

## What ecfr.gov says

> 8014-95-7 | Oleum (Fuming Sulfuric acid) [Sulfuric acid, mixture with sulfur trioxide] 1 | 10,000 | e | 10025-87-3 | Phosphorus oxychloride [Phosphoryl chloride] | 5,000 | b | 10049-04-4 | Chlorine dioxide [Chlorine oxide (ClO 2 )] | 1,000 | c | 10102-43-9 | Nitric oxide [Nitrogen oxide (NO)] | 10,000 | b | 10294-34-5 | Boron trichloride [Borane, trichloro-] | 5,000 | b | 13463-39-3 | Nickel carbonyl | 1,000 | b | 13463-40-6 | Iron, pentacarbonyl- [Iron carbonyl (Fe(CO) 5 ), (TB-5-11)-] | 2,500 | b | 19287-45-7 | Diborane | 2,500 | b | 26471-62-5 | Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-1] 1 | 10,000 | a | 1 The mixture exemption in <https://www.ecfr.gov/current/title-40/section-68.115#p-68.115(b)(1)> § 68.115(b)(1) does not apply to the substance. | Note: Basis for Listing: | a Mandated for listing by Congress. | b On EHS list, vapor pressure 10 mmHg or greater. | c Toxic gas.

Source: https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130

## Source

- https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA
- https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130

Last verified: 2026-08-15. Review by: 2027-08-15.
Part of [OSHA PSM vs EPA RMP: chemical threshold quantities side by side](https://referencesource.org/psm-rmp-chemical-threshold-crossref/).