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184.1545 Nitrous oxide.

Home > Regulations > Direct food substances affirmed as generally recognized as safe > 184.1545 Nitrous oxide.



[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: 21CFR184.1545]

[Page 547-548]
 
                        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.  184.1545  Nitrous oxide.

    (a) Nitrous oxide (empirical formula N2O, CAS Reg. No. 
10024-97-2) is also known as dinitrogen monoxide or laughing gas. It is 
a colorless gas, about 50 percent heavier than air, with a slightly 
sweet smell. It does not burn but will support combustion. Nitrous oxide 
is manufactured by the thermal decomposition of ammonium nitrate. Higher 
oxides of nitrogen are removed by passing the dry gas through a series 
of scrubbing towers.
    (b) The Food and Drug Administration is developing food-grade 
specifications for nitrous oxide in cooperation with the National 
Academy of Sciences. In the interim, the ingredient

[[Page 548]]

must be of a purity suitable for its intended use.
    (c) In accordance with Sec.  184.1(b)(1), the ingredient is used in 
food with no limitations 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 propellant, aerating agent, and gas 
as defined in Sec.  170.3(o)(25) of this chapter.
    (2) The ingredient is used in dairy product analogs as defined in 
Sec.  170.3(n)(10) of this chapter 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 57270, Dec. 29, 1983]





Additives that reference this regulation:


Source: U.S. Code of Federal Regulations - CFR Title 21, Part 184, Section 1545


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