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二钙

一、化学名:二钙,一钙 
二、分子式:Ca(H2PO4)2,Ca(H2PO4)2?H2O
三、分子量:无水物:234.05;一水物:252.07
四、CAS:无水物:7758-23-8;一水物:10031-30-8
五、性能:白色结晶粉末或片状结晶,比重2.220,在100℃时失去结晶水,溶于及,微溶于水(1.8﹪)。
六、用途:在食品工业中作膨松剂、面团调节剂、缓冲剂、组织改良剂、固化剂、营养增补剂、螯合剂等。
七、包装:内衬聚塑料袋,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	GB25559-2010	FCC,1999
含量(以Ca计) , w/%	无水物	Content(As Ca ) 	16.8-18.3	16.8-18.3(Anhydrous)
	一水物		15.9-17.7	15.9-17.7(Monohydrate)
砷 (As), mg/kg             ≤	Arsenic	3	3
铅 (Pb), mg/kg             ≤	Lead  	3	5
重金属(以P b计),mg/kg  ≤	Heavy Mental(As P b)	10	15
氟化物(以F计), mg/kg      ≤	Fluoride	25	50
干燥减量,无水物,w/%   ≤	Loss On Drying	1.0	1.0( Anhydrous)
灼烧减量,一水物,w/%   ≤	Loss On Ignition	14.0-15.5	14.0-15.5( Monohydrate)
澄清度	Clarity	通过试验	--
碳酸盐	Carbonate	通过试验	--
游离酸及其副盐	Free Acid & Its Auxiliary Salt	通过试验	--
1、Chemical Name: MONOCALCIUM PHOSPHATE 
2、Molecular Formula : Ca(H2PO4)2 ,Ca(H2PO4)2?H2O
3、Molecular Weight: Anhydrous:234.05;Monohydrate:252.07
4、CAS:Anhydrous:7758-23-8;Monohydrate:10031-30-80
5、Character: It is white crystalline powder or flaky crystal. Specific gravity is2.220. When heated to 100℃,it begins to lose crystal water. It is soluble in hydrochloric acid and nitric acid ,slightly soluble in water(1.8﹪).
6、Usage: In food industry, it is used as swelling agent ,dough regulator ,buffering agent, modifier, firming agent ,nutritional supplement ,chelating agent.
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 and Transport:It should be stored in a dry and ventilating warehouse; be cautious to keep away from moisture and hot; unloaded with care , so as t o avoid the damage. Furthermore, it should be stored separately from poisonous substances.

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