This electronic document was downloaded from the GPO web site, August 2002, and is provided for information purposes only. The Code of Federal Regulations, Title 21, is updated each year in early summer. The most current version of the regulations may be found at the GPO web site or from the current printed version.

 [Code of Federal Regulations]
 [Title 21, Volume 1]
 [Revised as of April 1, 2002]
 From the U.S. Government Printing Office via GPO Access
 [CITE: 21CFR73.2775]
 
 [Page 381-382]
 
                         TITLE 21--FOOD AND DRUGS
 
 CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN
                                 SERVICES
 
 PART 73--LISTING OF COLOR ADDITIVES EXEMPT FROM CERTIFICATION--Table of Contents
 
                           Subpart C--Cosmetics
 
 Sec. 73.2775  Manganese violet.
 
     (a) Identity. The color additive manganese violet is a violet
 pigment obtained by reacting phosphoric acid, ammonium dihydrogen
 orthophosphate, and manganese dioxide at temperatures above 450 [deg]F.
 The pigment is a manganese ammonium pyrophosphate complex having the
 approximate formula: Mn(III)NH<INF>4</INF>P<INF>2</INF>O<INF>7</INF>.
     (b) Specifications. Manganese violet shall conform to the following
 specifications and shall be free from impurities other than those named,
 to the extent that such other impurities may be avoided by good
 manufacturing practice:
 
 [[Page 382]]
 
 Ash (at 600 deg.C), not less than 81 percent.
 Volatile matter at 135 deg.C for 3 hours, not more than 1 percent.
 Water soluble substances, not more than 6 percent.
 pH of filtrate of 10 grams color additive (shaken occasionally for 2
 hours with 100 milliliters of freshly boiled distilled water), not more
 than 4.7 and not less than 2.5.
 Lead (as Pb), not more than 20 parts per million.
 Arsenic (as As), not more than 3 parts per million.
 Mercury (as Hg), not more than 1 part per million.
 Total color, based on Mn content in ``as is'' sample, not less than 93
 percent.
 
     (c) Uses and restrictions. Manganese violet is safe for use in
 coloring cosmetics generally, including cosmetics applied to the area of
 the eye, in amounts consistent with good manufacturing practice.
     (d) Labeling. The color additive and any mixture prepared therefrom
 intended solely or in part for coloring purposes shall bear, in addition
 to any information required by law, labeling in accordance with
 Sec. 70.25 of this chapter.
     (e) Exemption from certification. Certification of this color
 additive is not necessary for the protection of the public health, and
 therefore batches thereof are exempt from certification pursuant to
 section 721(c) of the act.


Color Additive Regulations
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