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Feed-grade calcium stearate and sodium stearate may be safely used in an animal feed in accordance with the following prescribed conditions: (a) Feed-grade calcium stearate and sodium stearate are the calcium or sodium salts of a fatty acid mixture that is predominately stearic acid. Associated fatty acids, including palmitic acid and minor amounts of lauric, myristic, pentadecanoic, margaric, arachidic, and other fatty acids may be contained in the mixture, but such associated fatty acids in aggregate do not exceed 35 percent by weight of the mixture. The fatty acids may be derived from feed-grade fats or oils. (b) The additives meet the following specifications: (1) Unsaponifiable matter does not exceed 2 percent. (2) They are free of chick-edema factor. (c) The additives are manufactured so that in aqueous solution they are exposed for 1 hour or longer to temperature in excess of 180 deg. F. (d) They are used as anticaking agents in animal feeds in accordance with current good manufacturing practices. [63 FR 8573, Feb. 20, 1998]
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