subchapter_subject: "FOOD FOR HUMAN CONSUMPTION (CONTINUED)"
part_code: "184"
part_subject: "DIRECT FOOD SUBSTANCES AFFIRMED AS GENERALLY RECOGNIZED AS SAFE"
subpart_code: "B"
subpart_subject: "Listing of Specific Substances Affirmed as GRAS"
section_number: "184.1265"
section_subject: "Cuprous iodide."
cfr_reference: "21 CFR 184.1265"
title_name: "Title 21"
title_subject: "Food and Drugs"
parts_covered: "Parts 170 to 199"
revised_date: "Revised as of April 1, 2019"
publication_date: "As of April 1, 2019"
contains_description: "Containing a codification of documents of general applicability and future effect"
publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"
---
(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)The 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.