GrokFood Home
Loading

173.395 Trifluoromethane sulfonic acid.

Home > Regulations > Secondary direct food additives permitted in food for human consumption > 173.395 Trifluoromethane sulfonic acid.



[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: 21CFR173.395]

[Page 150-151]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                          SERVICES (CONTINUED)
 
PART 173_SECONDARY DIRECT FOOD ADDITIVES PERMITTED IN FOOD FOR HUMAN 
CONSUMPTION--Table of Contents
 
                   Subpart D_Specific Usage Additives
 
Sec.  173.395  Trifluoromethane sulfonic acid.

    Trifluoromethane sulfonic acid has the empirical formula 
CF3SO3H (CAS Reg. No. 1493-13-6). The catalyst 
(Trifluoromethane sulfonic acid) may safely be used in the production of 
cocoa butter substitute from palm oil (1-palmitoyl-2-oleoyl-3-stearin) 
(see Sec.  184.1259 of this chapter) in accordance with the following 
conditions:
    (a) The catalyst meets the following specifications:

Appearance, Clear liquid.
Color, Colorless to amber.
Neutralization equivalent, 147-151.
Water, 1 percent maximum.
Fluoride ion, 0.03 percent maximum.
Heavy metals (as Pb), 30 parts per million maximum.
Arsenic (as As), 3 parts per million maximum.

    (b) It is used at levels not to exceed 0.2 percent of the reaction 
mixture to catalyze the directed esterification.
    (c) The esterification reaction is quenched with steam and water and

[[Page 151]]

the catalyst is removed with the aqueous phase. Final traces of catalyst 
are removed by washing batches of the product three times with an 
aqueous solution of 0.5 percent sodium bicarbonate.
    (d) No residual catalyst may remain in the product at a detection 
limit of 0.2 part per million fluoride as determined by the method 
described in ``Official Methods of Analysis of the Association of 
Official Analytical Chemists,'' sections 25.049-25.055, 13th Ed. (1980), 
which is incorporated by reference. Copies may be obtained from the AOAC 
INTERNATIONAL, 481 North Frederick Ave., suite 500, Gaithersburg, MD 
20877, 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.

[43 FR 54237, Nov. 11, 1978, as amended at 49 FR 10106, Mar. 19, 1984; 
54 FR 24897, June 12, 1989; 70 FR 40880, July 15, 2005; 70 FR 67651, 
Nov. 8, 2005]





Additives that reference this regulation:


Source: U.S. Code of Federal Regulations - CFR Title 21, Part 173, Section 395


Home | About | Search