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184.1425 Magnesium carbonate.
(a Magnesium carbonate (molecular formula approximately (MgCO3?Mg(OH?5H2O, CAS Reg. No. 39409C82C0 is also known as magnesium carbonate hydroxide. It is a white powder formed either by adding an alkaline carbonate (such as sodium carbonate to a solution of magnesium sulfate or by carbonation of a slurry of magnesium hydroxide followed by boiling of the resulting magnesium carbonate.
(b The ingredient meets the specifications of the Food Chemicals Codex, 3d Ed. ?981), p. 177, which is incorporated by reference. Copies are available from the National Academy Press, 2101 Constitution Ave. NW., Washington, DC 20418, or available for inspection at the National Archives and Records Administration (NARA) For information on the availability of this material at NARA, call 202C741C6030, or go to:http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
(c In accordance with184.1(b)(1), the ingredient is used in food with no limitation other thancurrent good manufacturing practice. The affirmation of this ingredient as generally recognized as safe (GRAS as a direct human food ingredient is based upon the following current good manufacturing practice conditions of use:
? The ingredient is used as an anticaking and free-flow agent as defined in170.3(o)(1 of this chapter; a flour treating agent as defined in 170.3(o)(13 of this chapter; a lubricant and release agent as defined in 170.3(o)(18 of this chapter; a nutrient supplement as defined in 170.3(o)(20 of this chapter; a pH control agent as defined in 170.3(o)(23 of this chapter; a processing aid as defined in 170.3(o)(24 of this chapter; and a synergist as defined in 170.3(o)(31 of this chapter.
? The ingredient is used in foods at levels not to exceed current good manufacturing practice.
(d Prior sanctions for this ingredient different from the uses established in this section do not exist or have been waived.
[50 FR 13558, Apr. 5, 1985; 50 FR 16080, Apr. 24, 1985]