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：228.18
四、CAS: 无水物：7758-11-4；三水物：16788-57-1
五、性能：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25千克。
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 | GB25561-2010 | FCC
V |
含量(干基计),w% ≥ | Content（Dry Basis） | 98 | 98 |
砷（As),mg/Kg ≤ | Arsenic | 3 | 3 |
氟化物（以F计）,mg/Kg ≤ | Fluoride | 10 | 10 |
重金属（以Pb计),mg/Kg ≤ | Heavy
Metals | 10 | ---------- |
水不溶物, w% ≤ | Water
Insolubles | 0.2 | 0.2 |
铅（Pb）,mg/Kg ≤ | Lead | 2 | 2 |
干燥失重,w% | 无水物 ≤ | Loss
on drying | 2.0 | 2.0 |
三水物 | 20.0-30.0 | 20.0-30.0 |
pH值，（10g/L溶液） | pH
Value | 9.0±0.4 | ---------- |
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, easily deliquescent, alkaline, insoluble in ethanol. PH
value is about9 in1%
aqueous solution.
6. Uses: 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 polyethylene bag as inner
layer, and a compound plastic woven bag as the outer layer. The net weight of
each bag is25kg.
8.Storage & Transportation: It should be stored in a dry and ventilating
warehouse. Be cautious to keep away from moisture and hot; unloaded with care,
so as to avoid the damage. Furthermore, it should be stored separately from
poisonous substances.
