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184.1807 Sodium thiosulfate.

Home > Regulations > Direct food substances affirmed as generally recognized as safe > 184.1807 Sodium thiosulfate.



[Code of Federal Regulations]
[Title 21, Volume 3]
[Revised as of April 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR184.1807]

[Page 567-568]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                          SERVICES (CONTINUED)
 
PART 184_DIRECT FOOD SUBSTANCES AFFIRMED AS GENERALLY RECOGNIZED AS 
SAFE--Table of Contents
 
        Subpart B_Listing of Specific Substances Affirmed as GRAS
 
Sec.  184.1807  Sodium thiosulfate.

    (a) Sodium thiosulfate 
(Na2S2O3[middot]5H2O, CAS 
Reg. No. 010102-0917-097) is also known as sodium hyposulfite. It is 
prepared synthetically by the reaction of sulfides and sulfur dioxide 
(SO2), the reaction of sulfur and sulfite, or the oxidation 
of metal sulfides and hydrosulfides.
    (b) The ingredient meets the specifications of the ``Food Chemicals 
Codex,'' 3d Ed. (1981), p. 304, which is incorporated by reference. 
Copies may be obtained from the National Academy Press, 2101 
Constitution Ave. NW., Washington, DC 20418, or may be examined at the 
National Archives and Records Administration (NARA). For information on 
the availability of this material at NARA, call 202-741-6030, or go to: 
http://www.archives.gov/federal--register/code--of--federal--
regulations/ibr--locations.html.
    (c) The ingredient is used as a formulation aid as defined in Sec.  
170.3(o)(14) of this chapter and reducing agent as defined in Sec.  
170.3(o)(22) of this chapter.
    (d) The ingredient is used in alcoholic beverages and table salt in 
accordance with Sec.  184.1(b)(1) at levels not to exceed good 
manufacturing practice. Current good manufacturing practice results in a 
maximum level, as served, of 0.00005 percent for alcoholic beverages as 
defined in Sec.  170.3(n)(2) of this chapter and 0.1 percent for table 
salt as defined in Sec.  170.3(n)(26) of this chapter.
    (e) Prior sanctions for this ingredient different from the uses 
established in

[[Page 568]]

this section do not exist or have been waived.

[43 FR 22938, May 30, 1978, as amended at 49 FR 5613, Feb. 4, 1984]





Additives that reference this regulation:


Source: U.S. Code of Federal Regulations - CFR Title 21, Part 184, Section 1807


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