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更多关于已证实属于一般公认为安全（GRAS）的可直接加入食品中的物质种类，请点出a href="//www.sqrdapp.com/law/dongtai/172262.html">美国FDA 21 CFR ?84部分已证实属于一般公认为安全（GRAS）的可直接加入食品中的物质种类汇怺/font>
184.1191 Calcium carbonate.
（a Calcium carbonate （CaCO3, CAS Reg. No. 471C34C1 is prepared by three common methods of manufacture:
? As a byproduct in the Lime soda process：/p>
? By precipitation of calcium carbonate from calcium hydroxide in the Carbonation process or
? By precipitation of calcium carbonate from calcium chloride in the Calcium chloride process、/p>
（b The ingredient meets the specifications of the Food Chemicals Codex, 3d Ed. ?981? p. 46, 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.
（d Prior sanctions for this ingredient different from the uses established in this section, or different from that set forth in part 181 of this chapter, do not exist or have been waived.
[48 FR 52441, Nov. 18, 1983]
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