Reference Source

Arsenous Oxide

For Arsenous Oxide, cas no. is 1327-53-3; epcra tpq (lbs) is 100/10,000; epcra rq (lbs) is 1, recorded from its source on 2026-08-05.

Substance
Arsenous Oxide
CAS No.
1327-53-3
EPCRA TPQ (lbs)
100/10,000
EPCRA RQ (lbs)
1 unconfirmed
Sourceecfr.gov
Verified2026-08-05
Review by2027-08-05
DatasetUS federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)

Values marked unconfirmed are shown, but we could not tie them to the quote below: EPCRA RQ (lbs). Read the quote and judge them yourself.

What the source says

100/10,000 | 1327-53-3 | Arsenous Oxide |

— ecfr.gov, retrieved 2026-08-05

Source

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.