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      磷酸二氢钾

      2016/6/12 阅读?#38382;?span id="hitshow">3127
      磷酸二氢钾分子式:KH2PO4
      磷酸二氢钾分子量:136.09
      磷酸二氢钾性 能:无色正方晶系结晶至白色颗粒或结晶性粉末。无 臭。于空气中稳定。相对密度2.338。熔点96℃至253℃。易溶于水(83.5g/100ml,90℃),2.7%的水溶液的PH值为4.2-4.7。不溶于乙醇。
      磷酸二氢钾用 途:在食品工业中作缓冲剂、螯合剂、酵母食料、调味剂、营养强化剂、发酵助剂、膨松剂等。
      磷酸二氢钾包 装:外袋为编织袋或牛皮纸袋,内衬聚乙烯塑料袋,每袋净重25kg。








      指标名称 Name of index   FCC-V E340(i) USP-30
      外观 Description   Odourless, colourless crystals or white granular or crystalline powder
      溶解性 Solubility   -- Freely soluble in water. Insoluble in ethanol --
      鉴别试验 Identification   Pass test Pass test Pass test
      pH值 1%水溶液 pH of a 1 % solution   -- 4.2—4.8 --
      含量(以干基计) Content(as dry base) % ≥98.0 98.0 (105℃,4h) 98.0-100.5 (105℃,4h)
      P2O5含量(无水物) P2O5 Content(Anhydrous basis) % -- 51.0 –53.0 --
      水不溶物(无水物) Water insoluble(Anhydrous basis) ≤% 0.2 0.2 0.2
      有机挥发杂质 Organic volatile impurities   -- -- Pass test
      Fluoride ≤ppm 10 10(expressed as fluorine) 10
      干燥失重 Loss on drying ≤% 1 2 (105℃,4h) 1 (105℃,4h)
      重金属 Heavy metals ≤ppm -- -- 20
      As ≤ppm 3 1 3
      Cadmium ≤ppm -- 1 --
      Mercury ≤ppm -- 1 --
      Lead ≤ppm 2 1 5

      磷酸二氢钾磷酸二氢钾磷酸二氢钾

      树人科创食品添加剂

      树人科创食品添加剂

      树人科创食品添加剂

      树人科创食品添加剂

      树人科创食品添加剂

      树人科创食品添加剂




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