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一、化学名: 磷酸氢二钾

二、分子式: K2HPO4K2HPO4· 3H2O

三、分子量: 无水物:174.18;三水物:228.18

四、CAS:  无水物:7758-11-4;三水物:16788-57-1

五、性能: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。

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25千克。

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

GB25561-2010

FCC V

含量(干基计),w%                 ≥

Content(Dry Basis)

98

98

砷(As),mg/Kg                    ≤

Arsenic

3

3

氟化物(以F计),mg/Kg           

Fluoride

10

10

重金属(以Pb计),mg/Kg             

Heavy Metals

10

----------

水不溶物, w%                     ≤

Water Insolubles

0.2

0.2

铅(Pb),mg/Kg                    ≤

Lead

2

2

干燥失重,w%         

无水物     ≤

Loss on drying

2.0

2.0

三水物

20.0-30.0

20.0-30.0

pH值,(10g/L溶液)

pH Value

9.0±0.4

----------

 

1. Chemical Name:  Dipotassium phosphate

2. Molecular Formula:  K2HPO4K2HPO4· 3H2O

3. Molecular Weight:  anhydrous: 174.18; trihydrate: 228.18

4. CAS:  anhydrous: 7758-11-4; trihydrate: 16788-57-1

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

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

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

8.Storage & Transportation:  It should be stored in a dry and ventilating warehouse. Be cautious to keep away from moisture and hot; unloaded with care, so as to avoid the damage. Furthermore, it should be stored separately from poisonous substances.

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