[Code of Federal Regulations]
[Title 21, Volume 3]
[Revised as of April 1, 2001]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR184.1137]

[Page 477]
 
                        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. 184.1137  Ammonium carbonate.

    (a) Ammonium carbonate ((NH4)2CO3, 
CAS Reg. No. 8000-73-5) is a mixture of ammonium bicarbonate 
(NH4HCO3) and ammonium carbamate 
(NH2COONH4). It is prepared by the sublimation of 
a mixture of ammonium sulfate and calcium carbonate and occurs as a 
white powder or a hard, white or translucent mass.
    (b) The ingredient meets the specifications of the Food Chemicals 
Codex, 3d Ed. (1981), p. 19, which is incorporated by reference. Copies 
are available from the National Academy Press, 2101 Constitution Ave. 
NW., Washington, DC 20418, or available for inspection at the Office of 
the Federal Register, 800 North Capitol Street, NW., suite 700, 
Washington, DC 20408.
    (c) In accordance with Sec. 184.1(b)(1), the ingredient is used in 
food with no limitation other than current good manufacturing practice. 
The affirmation of this ingredient as generally recognized as safe 
(GRAS) as a direct human food ingredient is based upon the following 
current good manufacturing practice conditions of use:
    (1) The ingredient is used as a leavening agent as defined in 
Sec. 170.3(o)(17) of this chapter and a pH control agent as defined in 
Sec. 170.3(o)(23) of this chapter.
    (2) The ingredient is used in food at levels not to exceed current 
good manufacturing practice.
    (d) Prior sanctions for this ingredient different from the uses 
established in this section do not exist or have been waived.

[48 FR 52439, Nov. 18, 1983]