磷酸氢钙二水

磷酸氢钙  DICALCIUM　PHOSPHATE

一、化学名：磷酸氢钙

二、分子式：CaHPO₄·(0,2)H₂O

三、分子量：无水物: 136.06; 二水物：172.09

四、CAS：无水物：7757-93-9；二水物：7789-77-7

五、性状：白色单斜结晶粉末，无臭无味，溶于稀盐酸、硝酸，微溶于水，不溶于乙醇。相对密度为2.32，在空气中稳定，75℃开始失水成为无水盐,强热变成焦磷酸钙。

六、用途：在食品工业中作疏松剂、面团改良剂、缓冲剂、营养增补剂、乳化剂、稳定剂等。如作面粉、蛋糕、糕点、烘焙制品的膨松剂，复配型面包改质剂，油炸食品改良剂。亦用于饼干、奶粉、冷饮、冰激凌粉，作为营养增补剂或品质改良剂。

七、包装：内衬聚乙烯塑料袋，外套复合塑料编织袋，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。

1、Chemical Name: Dicalcium Phosphate

2、Molecular Formula : CaHPO₄·(0-2)H₂O

3、Molecular Weight: Anhydrous: 136.06；Dihydrate: 172.09

4、CAS：Anhydrous :7757-93-9；Dihydrate :7789-77-7

5、Character: It is white monoclinic crystalline powder, tasteless and odorless. It’s soluble in dilute hydrochloric acid, nitric acid but slightly soluble in water, insoluble in ethanol. It’s stable in air. Relative density is 2.32. At 75℃, it starts to lose water and turns to anhydrous salt. With strong heat, it’ll even form Calcium Pyrophosphate.

6、Usage: In food industry, it is used as leavening agent(flour, cake, baking product, etc), modifier( dough, bread, fried food, etc), buffering agent, nutritional supplement(cookies, milk powder, cold drink and ice cream), emulsifier and stabilizing agent.

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

8、Storage and Transport: 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.