一、化学名：乙酸钾
二、分子式：C2H3KO2
三、分子量：98.144
四、CAS：127-08-2
五、性状：白色结晶性粉末，有碱味，易潮解。相对密度1.57g/cm3, 熔点292℃, 易溶于水，溶于甲醇、乙醇、液氨。不溶于乙醚、丙酮。溶液对石蕊呈碱性，对酚酞不呈碱性。低毒。可燃。
六、用途：缓冲剂、中和剂、防腐剂、护色剂（动植物天然色保护剂）和脱水剂。
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 | FAO/WHO,1992 | JECFA E261 |
| 含量（以干基计），w/% ≥ | Content(On dry basis),w/% ≥ | 99.0 | 99.0 |
| 干燥失重（150℃，2h），w/% ≤ | Loss on drying(150℃,2h), w/% ≤ | 8.0 | 8.0 |
| 碱度 | Alkalinity | Passes test | ———— |
| 砷（As），mg/kg ≤ | Arsenic(As),mg/kg ≤ | 3.0 | 3.0 |
| 铅（Pb），mg/kg ≤ | Lead(Pb),mg/kg ≤ | 10.0 | 2.0 |
| 汞（Hg），mg/kg ≤ | Mercury(as Hg),mg/kg ≤ | ———— | 1.0 |
| 钠化合物 | Test for sodium | Passes test | ———— |
| 重金属（以Pb计），mg/kg ≤ | Heavy metal(as Pb),mg/kg ≤ | 20.0 | ———— |
| pH（5%水溶液） | pH(5% Solution) | 7.5-9.0 | 7.5-9.0 |
| 甲酸，甲酸盐和其他可氧化物质（以甲酸计），w/% ≤ | Formic acid, formates and other oxidizable substances (in formic acid), w/% ≤ | ———— | 0.1 |
1、Chemical Name: Potassium Acetate
2、Molecular Formula: C2H3KO2
3、Molecular Weight: 98.144
4、CAS: 127-08-2
5、Character: It is a white crystalline powder, has an alkali taste, easy delixing. Relative density 1.57g/cm3, melting point 292℃, soluble in water, soluble in methanol, ethanol, liquid ammonia. Insoluble in ether and acetone. The solution is alkaline to litmus, but not to phenolphthalein. Low toxic. Combustible.
6、Usage: It is used as buffering agent, neutralizer, preservative and color fixative to protect natural colos of animals and plants.
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.
