[Code of Federal Regulations]
[Title 21, Volume 3]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR186.1797]
[Page 590]
TITLE 21--FOOD AND DRUGS
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN
SERVICES (CONTINUED)
PART 186 INDIRECT FOOD SUBSTANCES AFFIRMED AS GENERALLY RECOGNIZED
Subpart B Listing of Specific Substances Affirmed as GRAS
Sec. 186.1797 Sodium sulfate.
(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 Sec. 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.
[45 FR 6086, Jan. 25, 1980]
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