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水，溶液呈酸性（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 |
Specification |
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 |
———— |
1、Chemical Name: Ammonium Dihydrogen Phosphate
2、Molecular Formula: NH4H2PO4
3、Molecular Weight: 115.02(GB) ; 115.03(FCC)
4、CAS: 7722-76-1
5、Character: It’s colorless crystal 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.
6、Usage: In food industry, it’s used as leavening agent, dough regulator, yeast food, brewing fermentation agent animal feed additives.
7、Packing: It is packed with polyethylene bag as inner layer, a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.
8、Storage & Transportation: It should be stored in a dry ventilative warehouse, kept away from heat moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
