|质量指标||Specification||GB 25588-2010||FCC VII|
|砷，mg/kg ≤||Arsenic (as As) ,mg/kg ≤||2||————|
|硫化合物（K2SO4，以干基计），w/% ≤||Sulfur compound(K2SO4，dried basis),w/% ≤||0.01||————|
|铁（Fe），w/% ≤||Iron(Fe),w/% ≤||0.0010||————|
|铅，mg/kg ≤||Pb,mg/kg ≤||————||2|
|重金属（以Pb计），mg/kg ≤||Heavy Metals(As Pb),mg/kg ≤||10||————|
|水不溶物（以干基计），w/% ≤||Insoluble substances(dried basis)，w/% ≤||0.02||Pass Test|
|氯化物(KCl，以干基计)，w/% ≤||Chlorides(KCl，on the dried basis),w/% ≤||0.015||————|
|灼烧失量 ，w/% ≤||Loss on Ignition,w/% ≤||0.60||1.0 (180℃,4h)|
1、Chemical Name: Potassium Carbonate
2、Molecular Formula: K2CO3
3、Molecular Weight: 138.21
5、Character: It is anhydrous or contains 1.5 conbined water molecular. Anhydrous form occurs as white, granular powder and hydrated form occurs as white, translucent crystal or granule. It’s odorless and smells alkali. I air, it’s very deliquescent. It’s freely soluble in water and aqueous solution is alkaline. It’s insoluble in ethanol or ether.
6、Usage: It is used as pH regulator, nutrient, processing aid and spice. When added into noodle and wonton processing properly, it could endow the product with unique flavor, color and resilience.
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.
Next： Ding Weijie, Party Secretary of the Lianyungang City Federation of Trade Unions, visited Kelunduo, Jiangsu for research work