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§ 184.1764 Sodium hypophosphite.
（a） Sodium hypophosphite （NaH2PO2, CAS Reg. No. 7681–53–0） is a white, odorless, deliquescent granular powder with a saline taste. It is also prepared as colorless, pearly crystalline plates. It is soluble in water, alcohol, and glycerol. It is prepared by neutralization of hypophosphorous acid or by direct aqueous alkaline hydrolysis of white phosphorus.
（b） The ingredient must be of a purity suitable for its intended use.
（c） In accordance with§184.1（b）（1）, the ingredient is used in food with no limitations 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:
（1） The ingredient is used as an emulsifier or stabilizer, as defined in§170.3（o）（8） and 170.3（o）（28） of this chapter.
（2） The ingredient is used in cod-liver oil emulsions at levels not to exceed current good manufacturing practice.
（d） Prior sanctions for this ingredient different from the use established in this section do not exist or have been waived.
[47 FR 38277, Aug. 31, 1982, as amended at 73 FR 8608, Feb. 14, 2008]
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