乙酸钾

一、化学名：乙酸钾 二、分子式：C2H3KO2 三、分子量：98.14 四、CAS：127-08-2 五、性状：无色或白色结晶性粉末，易潮解，有咸味。1mol/l水溶液pH值为7.0-9.0。相对密度（d425）1.570, 熔点292℃, 极易溶于水(235g/100mL, 20℃; 492g/100mL, 62℃)、乙醇(33g/100mL)和甲醇(24.24g/100mL, 15℃)，不溶于乙醚和丙酮。 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 含量（以干基计），w/% ≥ Content(On Dry Basis),w/% ≥ 99.0 干燥失重（150℃，2h），w/% ≤ Loss On Drying(150℃,2h), w/% ≤ 8.0 碱度 Alkalinity 正常(Normal) 砷（As），mg/kg ≤ Arsenic(As),mg/kg ≤ 0.0003 钠化合物 Test for sodium 正常(Normal) 铅（Pb），mg/kg ≤ Lead(Pb),mg/kg ≤ 0.001 重金属（以Pb计），w/% ≤ Heavy Metal(As Pb),w/% ≤ 0.002 1、Chemical Name: Potassium Acetate 2、Molecular Formula : C2H3KO2 3、Molecular Weight: 98.14 4、CAS: 127-08-2 5、Character: It is white crystalline powder. It’s easily deliquescent and tastes salty. PH value of 1mol/L aqueous solution is 7.0-9.0. Relative density（d425） is 1.570. Melting point is 292℃. It’s highly soluble in water (235g/100mL, 20℃; 492g/100mL, 62℃), ethanol (33g/100mL) and methanol (24.24g/100mL, 15℃), but insoluble in ether. 6、Usage: It is used as buffering agent, neutralizer, preservative and color fixative to protect natural colors 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.