21 C.F.R. § 184.1265 Cuprous iodide.
Title 21 - Food and Drugs
(a) Cuprous iodide (copper (I) iodide, CuI, CAS Reg. No. 7681–65–4) is a pure white crystalline powder. It is prepared by the reaction of copper sulfate with potassium iodide under slightly acidic conditions. (b) FDA is developing food-grade specifications for cuprous iodide in cooperation with the National Academy of Sciences. In the interim, this ingredient must be of a purity suitable for its intended use. (c) In accordance with §184.1(b)(2), the ingredient is used in food only within the following specific limitations: (d) Prior sanctions for this ingredient different from the uses established in this section do not exist or have been waived. [49 FR 24119, June 12, 1984]
Title 21: Food and Drugs
PART 184—DIRECT FOOD SUBSTANCES AFFIRMED AS GENERALLY RECOGNIZED AS SAFE
Subpart B—Listing of Specific Substances Affirmed as GRAS
§ 184.1265 Cuprous iodide.
------------------------------------------------------------------------ Maximum treatment Category of food level in food Functional use------------------------------------------------------------------------Table salt...................... 0.01 percent...... Source of dietary iodine.------------------------------------------------------------------------

