Reference Source

Sulfur Trioxide (also called Sulfuric Anhydride)

For Sulfur Trioxide (also called Sulfuric Anhydride), cas no. is 7446-11-9; osha psm tq (lbs) is 1000, verified against its source on 2026-08-15.

Substance
Sulfur Trioxide (also called Sulfuric Anhydride) verified
CAS No.
7446-11-9 verified
OSHA PSM TQ (lbs)
1000 verified
Sourceosha.gov
Verified
Review by
DatasetOSHA PSM vs EPA RMP: chemical threshold quantities side by side

What the source says

Sulfur Trioxide (also called Sulfuric Anhydride) | 7446-11-9 | 1000

osha.gov, retrieved 2026-08-15

Source

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.