一、化学名： 磷酸三钾
二、分子式： K3PO4· nH2O
三、分子量： 无水物：212.27
四、CAS: 7778-53-2
五、性能： 白色无臭吸湿性结晶粉末或颗粒，相对密度为2.564。
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 | GB25563-2010 |
含量（K3PO4 ,灼烧干基）,w/% ≥ | Content | 97.0 |
砷（As）, mg/Kg
≤ | Arsenic | 3 |
氟化物（以F计）,mg/Kg
≤ | Fluoride | 10 |
pH值,（10g/L
溶液） | pH
Value | 11.5-12.5 |
重金属（以Pb计）,mg/Kg
≤ | Heavy
Metals | 10 |
水不溶物,w/% ≤ | Water
Insoluble | 0.2 |
铅（Pb）,mg/Kg
≤ | Lead | 2 |
灼烧减量,w% | 无水物
≤ | Loss
on Ignition | 5.0 |
水合物
| 8.0-20.0 |
1. Chemical Name: Tripotassium phosphate
2. Molecular Formula: K3PO4· nH2O
3. Molecular Weight: anhydrous: 212.27
4. CAS: 7778-53-2
5. Character: White crystal or granule, odorless, hygroscopic; relative
density: 2.564.
6. Uses: In food industry, it is used as buffering agent, chelating agent,
yeast food, emulsifying salt, and 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 is
25kg.
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.
