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184.1428 Magnesium hydroxide.
(a Magnesium hydroxide (Mg(OH?, CAS Reg. No. 1309C42C8 occurs naturally as the colorless, crystalline mineral brucite. It is prepared as a white precipitate by the addition of sodium hydroxide to a water soluble magnesium salt or by hydration of reactive grades of magnesium oxide.
(b The ingredient meets the specifications of the Food Chemicals Codex, 3d Ed. ?981? p. 178, 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 with 184.1(b)(1? the ingredient is used in food with no limitation other than current 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 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; and a processing aid as defined in 170.3(o)(24 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 13559, Apr. 5, 1985, as amended at 64 FR 405, Jan. 5, 1999]