1、分子式:C6H5K3O7·H2O 2、分子量:324.41 3、性 能:白色或微黄色结晶颗粒或结晶性粉末,无臭、味咸,凉、微有潮解性,在水或甘油中易溶,在乙醇中几乎不溶。相对密度1.98。加热至230℃熔化并分解。 4、用 途:在食品工业中作缓冲剂、螯合剂、稳定剂、抗氧化剂,乳化剂、调味剂等。可用于乳及乳制品、果冻、果酱、肉类、罐装水凝胶点心,亦用于干酪的乳化、柑橘的保鲜等。在医药工业中用于低血钾症和钾缺乏症及碱化尿液。 5、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。 1,Formula: C6H5K3O7·H2O 2,Formula wt: 324.41 3,CAS: [6100-05-6] 4,Specificity: White crystal or powder; odorless; taste salty; easy deliquescence; readily soluble in water or glycerin, almost insoluble in ethanol(Relative density 1.98 it will melt and decompose when heated to 230℃. 5,Packing: 25kg net paper bag or 1mt big bag with PE liner. 指标名称 | Name of index | BP98 | E-332(ii) | 外观 | Description | White, hygroscopic, granular powder or transparent crystals | 鉴别试验 | Identification | Positive tests for citrate and for potassium | 溶液外观 | Appearance of solution | Clear and colourless | -- | 含量(以干基计) | Assay(on anhydrous basis),% | 99.0—101.0 | ≥99.0 | 氯化物≤ppm | Chloride ,≤ppm | 50 | -- | 重金属(以铅计)≤ppm | Heavy metals(As Pb),≤ppm | 10 | 5 | 钠≤% | Sodium,≤% | 0.3 | -- | 草酸盐≤% | Oxalates,≤% | 0.03 | 0.01 | 硫酸盐≤% | Sulphates,≤% | 0.015 | -- | 酸碱度 | Acidity or Alkalinity | Passes test | -- | 易碳化物 | Readity carbonisable substances | Not deeper than standard | -- | 干燥失重(180℃,4h) | Loss on drying(180℃,4h) | 4.0-7.0 | ≤6% | pH(5%透明溶液) | pH(5%aqueous solution) | | 7.5-9.0 | 砷,≤ppm | Arsenic(As),≤ppm | -- | 1 | 铅,≤ppm | Lead(Pb),≤ppm | -- | 1 | 汞,≤ppm | Mercury(Hg),≤ppm | -- | 1 | | | | | | |
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