subchapter_subject: "FOOD FOR HUMAN CONSUMPTION (CONTINUED)"
part_code: "186"
part_subject: "INDIRECT FOOD SUBSTANCES AFFIRMED AS GENERALLY RECOGNIZED AS SAFE"
subpart_code: "B"
subpart_subject: "Listing of Specific Substances Affirmed as GRAS"
section_number: "186.1797"
section_subject: "Sodium sulfate."
cfr_reference: "21 CFR 186.1797"
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"
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(a)Sodium sulfate (Na2SO4, CAS Reg. No. 7757-82-6), also known as Glauber's salt, occurs naturally and exists as colorless crystals or as a fine, white crystalline powder. It is prepared by the neutralization of sulfuric acid with sodium hydroxide.
(b)The ingredient is used as a constituent of paper and paperboard used for food packaging, and cotton and cotton fabric used for dry food packaging.
(c)The ingredient is used at levels not to exceed good manufacturing practice in accordance with § 186.1(b)(1).
(d)Prior sanctions for this ingredient different from the uses established in this section do not exist or have been waived.