一、化学名: 磷酸氢二钾
二、分子式: K2HPO4,K2HPO4· 3H2O
三、分子量: 无水物:174.18;三水物:228.22
四、CAS: 无水物:7758-11-4;三水物:16788-57-1
五、性状:无色或白色正方晶体粉末或颗粒,易潮解,呈碱性,不溶于乙醇,1﹪水溶液的PH值约为9。
六、用途: 在食品工业中作缓冲剂、螯合剂、酵母食料、乳化盐、抗氧化增效···
一、化学名: 磷酸氢二钾
二、分子式: K2HPO4,K2HPO4· 3H2O
三、分子量: 无水物:174.18;三水物:228.22
四、CAS: 无水物:7758-11-4;三水物:16788-57-1
五、性状:无色或白色正方晶体粉末或颗粒,易潮解,呈碱性,不溶于乙醇,1﹪水溶液的PH值约为9。
六、用途: 在食品工业中作缓冲剂、螯合剂、酵母食料、乳化盐、抗氧化增效剂。
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 | GB 25561-2010 | FCC VII | ||
含量(干基计),w% ≥ | Content(Dry Basis), w% ≥ | 98 | 98 | ||
砷(As),mg/kg ≤ | Arsenic(As), mg/kg ≤ | 3 | 3 | ||
氟化物(以F计),mg/kg ≤ | Fluoride,mg/kg ≤ | 10 | 10 | ||
重金属(以Pb计),mg/kg ≤ | Heavy Metals (Pb), mg/kg ≤ | 10 | ———— | ||
水不溶物,w% ≤ | Insoluble Substances, w% ≤ | 0.2 | 0.2 | ||
铅(Pb),mg/kg ≤ | Lead (Pb), mg/kg ≤ | 2 | 2 | ||
干燥减量,w% | 无水物 ≤ | Loss on drying, w% | Anhydrous ≤ | 2.0 | 2.0 |
pH值(10g/L 溶液,25℃) | pH value(10g/L,25℃) | 9.0±0.4 | ———— |
可以生产满足医药级、化学纯、分析纯等高端定制指标。
1、Chemical Name: Dipotassium Phosphate
2、Molecular Formula: K2HPO4,K2HPO4· 3H2O
3、Molecular Weight: Anhydrous: 174.18; Trihydrate: 228.18
4、CAS: Anhydrous: 7758-11-4; Trihydrate: 16788-57-1
5、Character: It’s colorless or white square crystal granule or powder, easily deliquescent, alkaline, insoluble in ethanol. pH value is about 9 in 1% aqueous solution.
6、Usage: In food industry, it is used as buffering agent, chelating agent, yeast food, emulsifying salt, synergistic agent of anti-oxidation.
7、Packing: It is packed with a polyethylene bag as the inner layer, and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.
8、Storage & Transportation: 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.