K2CO3
一、化学名：碳酸钾
二、分子式：K2CO3
三、分子量：138.20
四、CAS：584-08-7
五、性状：有无水物或含1.5分子的结晶。无水物为白色粒状粉末，结晶为白色半透明小晶体颗粒。无臭，有强碱味。在湿空气中易吸湿潮解。易溶于水，水溶液呈碱性。不溶于乙醇及乙醚。
六、用途：酸度调节剂、营养增补剂、加工助剂、香料。在制造面条、馄饨时适量加入，可赋予产品特有的风味、色泽和韧性（常与碳酸钠等合用）。亦用于矿物质饮料。
七、包装：内衬聚乙烯塑料袋，外套复合塑料编织袋包装，每袋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，应与有毒物品隔离。
|
质量指标 |
Specification |
GB 25588-2010 |
FCC VII |
|
碳酸钾（以干基计），w/% ≥ |
K2CO3(On Dry Basis),w/% ≥ |
99.0 |
99.0-100.5 |
|
砷（As），mg/kg ≤ |
Arsenic(As),mg/kg ≤ |
2 |
———— |
|
硫化合物(以K2SO4计)以干基计,w/%≤ |
Sulfur compound(K2SO4)On Dry Basis,w/%≤ |
0.01 |
———— |
|
铁（Fe）以干基计，w/% ≤ |
Iron(Fe)On Dry Basis,w/% ≤ |
0.001 |
———— |
|
铅（Pb），mg/kg ≤ |
Lead(Pb),mg/kg ≤ |
———— |
2 |
|
重金属（以Pb计），mg/kg ≤ |
Heavy Metal(As Pb),mg/kg ≤ |
10 |
———— |
|
水不溶物，w/% ≤ |
Insoluble substances，w/% ≤ |
0.02 |
Pass Test |
|
氯化物(以KCl计)以干基计，w/% ≤ |
Chlorides(KCl)On Dry Basis,w/% ≤ |
0.015 |
———— |
|
灼烧失量，w/% ≤ |
Loss on Ignition,w/% ≤ |
0.6 |
1(180℃,4h) |
1、Chemical Name: Potassium Carbonate
2、Molecular Formula: K2CO3
3、Molecular Weight: 138.20
4、CAS: 584-08-7
5、Character: It is anhydrous contains 1.5 conbined water molecular. Anhydrous form occurs as white, granular powder hydrated form occurs as white, translucent crystal granule. It’s odorless smells alkali. I air, it’s very deliquescent. It’s freely soluble in water aqueous solution is alkaline. It’s insoluble in ethanol ether.
6、Usage: It is used as pH regulator, nutrient, processing aid spice. When added into noodle wonton processing properly, it could endow the product with unique flavor, colresilience.
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 Transport: 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.
