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:  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, 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.