21 CFR 172.490 - Yellow prussiate of soda.

Regulations last checked for updates: May 01, 2025

Title 21 - Food and Drugs last revised: Apr 28, 2025

View all text of Subpart E [§ 172.410 - § 172.490]

§ 172.490 - Yellow prussiate of soda.

(a) The food additive yellow prussiate of soda (sodium ferrocyanide decahydrate; Na4Fe(CN)6·10H2O contains a minimum of 99 percent by weight of sodium ferrocyanide decahydrate.

(b) The additive is used or intended for use as an anticaking agent in salt and as an adjuvant in the production of dendritic crystals of salt in an amount needed to produce its intended effect but not in excess of 13 parts per million calculated as anhydrous sodium ferrocyanide.

[42 FR 14491, Mar. 15, 1977, as amended at 58 FR 17098, Apr. 1, 1993]

authority: 21 U.S.C. 321,341,342,348,371,379e

source: 42 FR 14491, Mar. 15, 1977, unless otherwise noted.

cite as: 21 CFR 172.490