柠檬酸钾
柠檬酸钾 POTASSIUM CITRATE
一、化学名称：柠檬酸钾；2 -羟基丙烷-1, 2 ,3 -三羧酸三钾；枸橼酸钾
二、分子式：K3C6H5O7·H2O；C6H5K3O7
三、分子量：一水：324.41；无水：306.40
四、CAS: 一水：6100-05-6；无水：866-84-2
五、性状：透明晶体或白色粗粉，无臭，味咸，有清凉感, 相对密度 1.98。在空气中易吸湿潮解。易溶于水，缓慢溶于甘油，几乎不溶于乙醇。水溶液呈碱性PH8.5。
六、用途： 在食品工业中作缓冲剂、螯合剂、稳定剂、抗氧化剂、乳化剂、调味剂等。可用于乳及乳制品、果冻、果酱、肉类、罐装水凝胶点心，亦用于干酪的乳化、柑橘的保鲜等。在医药工业中用于低血钾症和钾缺乏症及碱化尿液。
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 | GB1886.74--2015 | FCC VII |
含量（以干基计），w/% | Content(On Dry Basis),w/% | 99.0-100.5 | 99.0-100.5 |
透光率，w/% ≥ | Light Transmittance,w/% ≥ | 95.0 | ———— |
氯化物（Cl），w/% ≤ | Chlorides(Cl), w/% ≤ | 0.005 | ———— |
硫酸盐 ，w/% ≤ | Sulfates,w/% ≤ | 0.015 | ———— |
草酸盐 ，w/% ≤ | Oxalates,w/% ≤ | 0.03 | ———— |
总砷（As），mg/kg ≤ | Total Arsenic(As),mg/kg ≤ | 1.0 | ———— |
铅（Pb），mg/kg ≤ | Lead(Pb),mg/kg ≤ | 2.0 | 2.0 |
碱度 | Alkalinity | 通过试验 | Pass Test |
干燥减量，w/% | Loss on Drying ,w/% | 3.0-6.0 | 3.0-6.0 |
易碳化物 ≤ | Easily Carbonize Substances ≤ | 1.0 | ———— |
水不溶物 | Insoluble Substances | 通过试验 | ———— |
钙盐，w/% ≤ | Calcium Salt,w/% ≤ | 0.02 | ———— |
铁盐，mg/kg ≤ | Ferric Salt,mg/kg ≤ | 5.0 | ———— |
干燥温度为180℃±2℃，干燥至恒重。 |
1、Chemical Name: Potassium Citrate
2、Molecular Formula: K3C6H5O7·H2O ; K3C6H5O7
3、Molecular Weight: Monohydrate:324.41 ; Anhydrous:306.40
4、CAS: Monohydrate:6100-05-6 ; Anhydrous:866-84-2
5、Character: It is transparent crystal or white coarse powder, odorless and tastes salty and cool. Relative density is 1.98. It’s easily deliquescent in air, soluble in water and glycerin, almost insoluble in ethanol.
6、Usage: In food processing industry, it is used as buffer, chelate agent, stabilizer, antioxidant, emulsifier and flavoring. It can be used in dairy product,jelly, jam, meat and tinned pastry. It also can be used as emulsifier in cheese and antistaling agent in oranges, and so on. In pharmaceutical, it is used for hypokalemia, potassium depletion and alkalization of urine.
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.
