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食品级磷酸二氢铵
商品别名:一铵
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品牌:科伦多
cas:7722-76-1
分子式:NH4H2PO4

一、化学名:磷酸二氢铵

二、分子式:NH4H2PO4                                      

三、分子量:115.02(GB);115.03(FCC) 

四、CAS: 7722-76-1

五、性能:本品为无味无色结晶或白色结晶性粉末。露置空气中约能失去8%的氨。1g该品溶于约2.5mL,溶液呈性(0.2mol/L水溶液pH值4.3)。微溶于乙醇,不溶于丙酮。熔点180℃,相对密度1.80。

六、用途:在食品工业中用作膨松剂、面团调节剂、酵母食料、酿造发酵助剂、缓冲剂。还用作动物饲料添加剂。

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

   

FCC VII

含量(以NH4H2PO4计),w/%          

Content(As NH4H2PO4 ),w/%    

96.0-102.0

96.0-102.0

氟化物(以F计),mg/kg           ≤

Fluorides(As F),mg/kg    ≤

10

10

砷(As),mg/kg                   ≤

Arsenic(As),mg/kg       ≤

3

3

重金属(以Pb计),mg/kg          ≤

Heavy metal(As Pb),mg/kg≤

10

————

铅(Pb),mg/kg                   ≤

Lead(Pb),mg/kg        ≤

4

4

PH(10g/L水溶液,25℃)

PH(10g/L,25℃)

4.3-5.0

————

 

1Chemical Name: Ammonium Dihydrogen Phosphate

2Molecular Formula: NH4H2PO4

3Molecular Weight: 115.02(GB) ; 115.03(FCC)

4CAS: 7722-76-1

5Character: It’s colorless crystal or white crystalline powder, tasteless. It can lose about 8% of ammonia in air. 1g Ammonium Dihydrogen Phosphate could be dissolved in about 2.5mL water. Aqueous solution is Acidic (pH value of 0.2mol/L aqueous solution is 4.3). It’s slightly soluble in ethanol, insoluble in acetone. Melting point is 180 ℃. Density is 1.80.

6Usage: In food industry, it’s used as leavening agent, dough regulator, yeast food, brewing fermentation agent and animal feed additives.

7Packing: 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.

8Storage & 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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