Hydrogen cyanide

For Hydrogen cyanide, cas no. is 74-90-8; cercla rq (lbs) is 10; rcra waste number is P063; regulatory categories is 1,4, verified against its source on 2026-08-05.

Substance: Hydrogen cyanide
CAS No.: 74-90-8
CERCLA RQ (lbs): 10
RCRA waste number: P063
Regulatory categories: 1,4

Sourceecfr.gov

Verified2026-08-05

Review by2027-08-05

DatasetUS federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)

What the source says

Hydrogen cyanide | 74-90-8 | 1,4 | P063 | 10 (4.54)

— ecfr.gov, retrieved 2026-08-05

Source

ecfr.govhttps://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-302/section-302.4

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.