(a) Benzoyl peroxide ((C6H5CO)2O2, CAS Reg. No. 94-36-0) is a colorless, rhombic crystalline solid. It is prepared by reaction of benzoyl chloride, sodium hydroxide, and hydrogen peroxide.
(b) The ingredient meets the specifications of the Food Chemicals Codex, 3d Ed. (1981), p. 35, 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 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
(c) In accordance with Sec. 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:
(1) The ingredient is used as a bleaching agent in food.
(2) The ingredient is used in the following foods at levels not to exceed current good manufacturing practice: flour; milk used for production of Asiago fresh and Asiago soft cheese (Sec. 133.102), Asiago medium cheese (Sec. 133.103), Asiago old cheese (Sec. 133.104), Blue cheese (Sec. 133.106), Caciocavallo siciliano chesse (Sec. 133.111), Gorgonzola cheese (Sec. 133.141), Parmesan and reggiano cheese (Sec. 133.165), Provolone cheese (Sec. 133.181), Romano cheese (Sec. 133.183), and Swiss and emmentaler cheese (Sec. 133.195) in part 133 of this chapter; and annatto-colored whey, such that the final bleached product conforms to the descriptions and specifications for whey, concentrated whey, or dried whey in Sec. 184.1979(a) (1), (2), or (3), respectively.
(d) Prior sanctions for this ingredient different from the uses established in this section do not exist or have been waived. [51 FR 27173, July 30, 1986] Sec. 184.1165 n-Butane and iso-butane.
(a) n-Butane and iso-butane (empirical formula C4H10, CAS Reg. Nos. 106-97-8 and 75-28-5, respectively) are colorless, flammable gases at normal temperatures and pressures. They are easily liquefied under pressure at room temperature and are stored and shipped in the liquid state. The butanes are obtained from natural gas by fractionation following absorption in oil, adsorption to surface-active agents, or refrigeration.
(b) The ingredients must be of a purity suitable for their intended use.
(c) In accordance with Sec. 184.1(b)(1), these ingredients are used in food with no limitations other than current good manufacturing practice. The affirmation of these ingredients as generally recognized as safe (GRAS) as direct human food ingredients is based upon the following current good manufacturing practice conditions of use:
(1) The ingredients are used as propellants, aerating agents, and gases as defined in Sec. 170.3(o)(25) of this chapter.
(2) The ingredients are used in food at levels not to exceed current good manufacturing practice.
(d) Prior sanctions for these ingredients different from the uses established in this section do not exist or have been waived. [48 FR 57270, Dec. 29, 1983, as amended at 73 FR 8607, Feb. 14, 2008; 76 FR 59249, Sept. 26, 2011]