Reference Source

Hydrogen Sulfide

For Hydrogen Sulfide, cas no. is 7783-06-4; epcra tpq (lbs) is 500; epcra rq (lbs) is 100, verified against its source on 2026-08-05.

Substance
Hydrogen Sulfide
CAS No.
7783-06-4
EPCRA TPQ (lbs)
500
EPCRA RQ (lbs)
100
CERCLA RQ (lbs)
100 per ecfr.gov
RCRA waste number
U135 per ecfr.gov
Regulatory categories
1,4 per ecfr.gov
Sourceecfr.gov
Verified2026-08-05
Review by2027-08-05
DatasetUS federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)

What the source says

7783-06-4 | Hydrogen Sulfide | f | 100 | 500 |

— ecfr.gov, retrieved 2026-08-05

What ecfr.gov says

Hydrogen sulfide H2S | 7783-06-4 | 1,4 | U135 | 100 (45.4)

— ecfr.gov, retrieved 2026-08-05

Sources

Last verified against source: 2026-08-05. Scheduled for re-check by: 2027-08-05. This page as Markdown · OKF bundle · full dataset as JSON.