21 CFR § 82.51 - Lakes (FD&C).
(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.
(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”.