Phosphine

For Phosphine, cas no. is 7803-51-2; cercla rq (lbs) is 100; rcra waste number is P096; regulatory categories is 3,4, verified against its source on 2026-11-02.

Substance: Phosphine verified
CAS No.: 7803-51-2 verified
CERCLA RQ (lbs): 100 verified
RCRA waste number: P096 verified
Regulatory categories: 3,4 verified
EPCRA TPQ (lbs): 500 per ecfr.gov
EPCRA RQ (lbs): 100 per ecfr.gov

Sourceecfr.gov

Verified2026-11-02

Review by2027-08-05

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

What the source says

Phosphine | 7803-51-2 | 3,4 | P096 | 100 (45.4)

— ecfr.gov, retrieved 2026-08-05

What ecfr.gov says

7803-51-2 | Phosphine | | 100 | 500 |

— ecfr.gov, retrieved 2026-08-05

Sources

ecfr.govhttps://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-302/section-302.4
ecfr.govhttps://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-355

Last verified against source: 2026-11-02. Due for re-check by 2027-08-05. This page as Markdown · OKF bundle · full dataset as JSON.

Phosphine

What the source says

What ecfr.gov says

Sources

More on workplace safety and hazardous materials