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§ 82.2051 - Lakes (Ext. D&C).

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General. Any lake made by extending on a substratum of alumina, blanc fixe, gloss white, clay, titanium dioxide, zinc oxide, talc, rosin, aluminum benzoate, calcium carbonate, or on any combination of two or more of these (i) one of the straight colors hereinbefore listed in this subpart, which color is a salt in which is combined the basic radical sodium, potassium, barium, or calcium; or (ii) a salt prepared from one of the straight colors hereinbefore listed in this subpart by combining such color with the basic radical sodium, potassium, aluminum, barium, calcium, strontium, or zirconium.

Specifications.

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:

The listed name of the color from which the lake is prepared;

The name of the basic radical combined in such color; and

The word “Lake.” (For example, the name of a lake prepared by extending the color Ext. D&C Yellow No. 2 upon a substratum is “Ext. D&C Yellow No. 2—Calcium Lake,” and a lake prepared by extending the barium salt prepared from Ext. D&C Red No. 2 upon the substratum is “Ext. D&C Red No. 2—Barium Lake.”)

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§ 82.2050 - General.
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§ 82.2707a - Ext. D&C Yellow No. 7.