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三水磷酸氢二钾

三水磷酸氢二钾

产品描述/ Product Description

一、化学名:磷酸氢二钾

二、分子式:K2HPO4 ;K2HPO4·3H2O

三、分子量:无水物:174.178;三水物:228.238

四、CAS无水物:7758-11-4;三水物:16788-57-1

五、性状:无色或白色正方晶体粉末或颗粒,易潮解,呈碱性不溶于乙醇,1﹪水溶液的PH值约为9。具有吸湿性。

六、用途:在食品工业中作缓冲剂、螯合剂、酵母食料、乳化盐、抗氧化增效剂。

七、包装:内衬聚乙烯塑料袋,外套复合塑料编织袋包装,每袋净重25kg。

八、贮存与运输:本品应贮存在干燥通风清洁的库房中,装载运输时要轻装轻放,防止包装破损,防止受潮、受热,运输过程中防止雨淋受潮,应与有毒物品隔离。

质量指标 Specification GB 25561-2010 FCC VII
含量(以干基计),w/%     ≥ Content(On dry basis), w/%      ≥ 98.0 98.0
砷(As),mg/kg           ≤ Arsenic(As),mg/kg             ≤ 3 3
氟化物(以F计),mg/kg    ≤ Fluoride(as F),mg/kg           ≤ 10 10
重金属(以Pb计),mg/kg   ≤ Heavy metal(as Pb),mg/kg       ≤ 10 ————
水不溶物,w/%           ≤ Insoluble substances,w/%       ≤ 0.2 0.2
铅(Pb),mg/kg            Lead (Pb),mg/kg              ≤ 2 2
干燥减量,w/% 无水物  ≤ Loss on drying,w/%  Anhydrous≤ 2.0 2.0
pH值(10g/L溶液) pH value (10g/L Solution ) 9.0±0.4 ————

1Chemical Name: Dipotassium Phosphate

2Molecular Formula: K2HPO4 ; K2HPO4· 3H2O

3Molecular Weight: Anhydrous:174.178 ; Trihydrate:228.238

4CAS: Anhydrous:7758-11-4 ; Trihydrate:16788-57-1

5Character: It’s colorless or white square crystal granule or powder, easily deliquescent, alkaline, insoluble in ethanol. PH value is about 9 in 1% aqueous solution.

6Usage: In food industry, it is used as buffering agent, chelating agent, yeast food, emulsifying salt, synergistic agent of anti-oxidation.

7Packing: It is packed with a polyethylene bag as the inner layer, and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.

8Storage & Transportation: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.

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