磷酸氢二钾 磷酸氢二钾三水结晶 磷酸氢二钾无水粉末 25公斤起订

磷酸氢二钾   DIPOTASSIUM PHOSPHATE

 

一、化学名： 磷酸氢二钾 

二、分子式： K₂HPO₄，K₂HPO₄· 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。 

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(干基计),w		Content（Dry Basis）, w		98	98
砷（As),mg/kg		Arsenic（As), mg/Kg		3	3
氟化物（以F计）,mg/kg		Fluoride,mg/Kg		10	10
重金属（以Pb计),mg/kg		Heavy Metals (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
	三水物		Trihydrate	20.0-30.0
pH值，（10g/L溶液）		pH Value  (10g/L)		9.0±0.4

 

1. Chemical Name:  Dipotassium Phosphate

2. Molecular Formula:  K₂HPO₄，K₂HPO₄· 3H₂O

3. Molecular Weight:  Anhydrous: 174.18; Trihydrate: 228.18

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

5. Character: 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.

6. Usage:  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 a polyethylene bag as the inner layer, and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.

8. Storage & 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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