Selenium dioxide

For Selenium dioxide, cas no. is 7746-08-4; cercla rq (lbs) is 10; rcra waste number is U204; regulatory categories is 1,4, verified against its source on 2026-08-05.

Substance: Selenium dioxide verified
CAS No.: 7746-08-4 verified
CERCLA RQ (lbs): 10 verified
RCRA waste number: U204 verified
Regulatory categories: 1,4 verified

Sourceecfr.gov

Verified2026-08-05

Review by2027-08-05

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

What the source says

Selenium dioxide | 7746-08-4 | 1,4 | U204 | 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. Due for re-check by 2027-08-05. This page as Markdown · OKF bundle · full dataset as JSON.