subchapter_subject: "FOOD FOR HUMAN CONSUMPTION (CONTINUED)"
part_code: "178"
part_subject: "INDIRECT FOOD ADDITIVES: ADJUVANTS, PRODUCTION AIDS, AND SANITIZERS"
subpart_code: "D"
subpart_subject: "Certain Adjuvants and Production Aids"
section_number: "178.3900"
section_subject: "Sodium pentachlorophenate."
cfr_reference: "21 CFR 178.3900"
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"
---
Sodium pentachlorophenate may be safely used as a preservative for ammonium alginate employed as a processing aid in the manufacture of polyvinyl chloride emulsion polymers intended for use as articles or components of articles that contact food at temperatures not to exceed room temperature. The quantity of sodium pentachlorophenate used shall not exceed 0.5 percent by weight of ammonium alginate solids.