磷酸二氢钙
MONOCALCIUM PHOSPHATE
一、化学名：磷酸二氢钙 ,磷酸一钙
MONOCALCIUM PHOSPHATE
二、分子式：Ca（H2PO4）2·H2O
三、分子量：252.07
四、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，溶于盐酸及硝酸，微溶于水（1.8﹪）。一般含游离磷酸，具有吸湿性（30℃），水溶液呈酸性（ＰＨ±3）。
五、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。如作烘制品、糕点膨松剂；面包、饼干的助酵剂、缓冲剂、果胶固化剂（凝胶作用），酵母食品肉类制品组织改进剂等。
六、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。
|
质量指标 |
Specification |
HG2927-1999 |
|
外观 |
Appearance |
White crystalline powder or flaky crystal |
|
含量(以Ca计)
﹪
|
Content（as Ca） |
15.2-17.2 |
|
砷
≤﹪ |
Arsenic |
0.0003 |
|
重金属（以P b计）≤﹪ |
Heavy mental（as P b） |
0.002 |
|
氟化物
≤﹪
|
Fluoride |
0.0025 |
|
加热减重180℃,3h ≤﹪ |
Weight loss on heating(180℃,3h) |
17.0 |
|
澄清度 |
Clarity |
According to the test |
|
碳酸盐 |
Carbonate |
According to the test |
|
游离酸及其副盐 |
Free acid and its auxiliary salt |
According to the test |
1、Chemical Name: MONOCALCIUM
PHOSPHATE
or
CALCIUM DIHYDROGEN PHOSPHATE
2、Molecular Formula : Ca（H2PO4）2·H2O
3、Molecular Weight: 252.07
4、Character: White crystalline powder or flaky crystal, specific gravity:2.220. 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﹪) .It usually contains dissociative phosphoric acid ,hygroscopic ,and its aqueous solution is acidic(PH±3).
5、Uses: In food industry, it is used as swelling agent ,dough regulator ,buffering agent, modifier, firming agent ,nutritional supplement ,chelating agent , such as leavening for baking cake, the leavening agent 、buffering agent and pectin firming agent-for gelling used in bread and biscuits, organization improving agent in yeast food and meat.
6、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.
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