[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: 21CFR82.51]

[Page 444-445]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                                SERVICES
 
PART 82--LISTING OF CERTIFIED PROVISIONALLY LISTED COLORS AND SPECIFICATIONS--Table of Contents
 
                 Subpart B--Foods, Drugs, and Cosmetics
 
Sec. 82.51  Lakes (FD&C).

    (a)(1) General. Any lake made by extending on a substratum of 
alumina, a salt prepared from one of the certified water-soluble 
straight colors hereinbefore listed in this subpart by combining such 
color with the basic radical aluminum or calcium.
    (2) Specifications. Prepared from previously certified colors listed 
in this subpart.


[[Page 445]]


Soluble chlorides and sulfates (as sodium salts), not more than 2.0 
percent.
Inorganic matter, insoluble HCl, not more than 0.5 percent.

    (b) Each lake made as prescribed in paragraph (a) of this section 
shall be considered to be a straight color and to be listed therein 
under the name which is formed as follows:
    (1) The listed name of the color from which the lake is prepared;
    (2) The name of the basic radical combined in such color; and
    (3) The word ``Lake''.

(For example, the name of a lake prepared by extending the aluminum salt 
prepared from FD&C Blue No. 1 upon the substratum would be FD&C Blue No. 
1--Aluminum Lake.)