Sodium nitrite

For Sodium nitrite, jurisdiction is US FDA (21 CFR 172–178); status is permitted; citation is 21 CFR 172.175; use conditions is color fixative in smoked cured tunafish (not to exceed 10 ppm); preservative and color fixative in smoked/cured sablefish, salmon, shad (not to exceed 200 ppm); in meat-curing preparations for home curing (not to exceed 200 ppm in finished meat product), recorded from its source on 2026-08-15.

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

Permitted for Direct Addition to Food for Human Consumption Subpart B <https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-172/subpart-A> Previous <https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-172/subpart-C> Next Top Table of Contents Enhanced Content - Table of Contents Subpart B | Food Preservatives | <https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-172/subpart-B?toc=1> 172.105 – 172.190 | § 172.105 | Anoxomer. | § 172.110 | BHA. | § 172.115 | BHT. | § 172.120 | Calcium disodium EDTA. | § 172.130 | Dehydroacetic acid. | § 172.133 | Dimethyl dicarbonate. | § 172.135 | Disodium EDTA. | § 172.140 | Ethoxyquin. | § 172.145 | Heptylparaben. | § 172.150 | 4-Hydroxymethyl-2,6-di- tert -butylphenol. | § 172.155 | Natamycin (pimaricin). | § 172.160 | Potassium nitrate. | § 172.165 | Quaternary ammonium chloride combination. | § 172.167 | Silver nitrate and hydrogen peroxide solution. | § 172.170 | Sodium nitrate. | § 172.175 | Sodium nitrite.

— ecfr.gov, retrieved 2026-08-15

Source

• ecfr.govhttps://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-172/subpart-B

Last verified against source: 2026-08-15. Due for re-check by 2027-08-15. This page as Markdown · OKF bundle · full dataset as JSON.