[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: 21CFR173.395]
[Page 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
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
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]
[[Page 152]]
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