可定做:食品级FCC/FDA 医药级BP/USP/EP 化学纯CP级 分析纯AR级 
化 学 名:
硫酸铵
英文名称:
Ammonium Sulfate
分 子 式:
(NH4)2SO4
分 子 量:
132.14
CAS NO:
7783-20-2
性  能:
无色结晶或白色颗粒。无气味。280℃以上分解。水中溶解度:0℃时41.22g,25℃时43.47g,100℃时50.42g。不溶于乙醇和丙酮。pH为5.5。相对密度1.77。
包  装:
内衬聚乙烯塑料袋,外套塑料编织袋,每袋25Kg。
贮存与运输:
应贮在干燥,通风清洁的库房中,轻装轻放,防止受潮、受热,运输过程中防止雨淋受潮,应与有毒物品隔离堆放。
用途:
水质软化剂;酵母食料。
其他信息:
质量指标 GB29206-2012
含量(NH4)2SO4,  w/%  ≥ 99.0-100.5
灼烧残渣, w/%  ≤ 0.25
砷(As),mg/kg  ≤ 3
硒 (Se),mg/kg  ≤ 30
铅 (Pb),mg/kg  ≤ 3

1、Chemical Name: Ammonium Sulfate

2、Molecular Formula : (NH4)2SO4

3、Molecular Weight: 132.15

4、CAS: 7783-20-2

5、Character: It is colorless transparent orthorhombic crystal, deliquescent. Relative density is 1.769(50℃). It’s soluble in water(At 0℃, solubility is 70.6g/100mLwater; 100℃, 103.8g/100mLwater). Aqueous solution is acidic. It’s insoluble in ethanol, acetone or ammonia. It reacts with the alkalies to form ammonia. 

6、Usage: According to GB 2760-2011, it could be used as processing aid (only used as nutrient for fermentation). It also could be used as dough regulator and yeast food. In fresh yeast production, it’s the nitrogen source for yeast cultivation (Dosage is not specified.). Dosage is about 10% (about 0.25% for wheat powder) for yeast nutrient in bread.

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.

 

 

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