|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.