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乙酸钾 POTASSIUM ACETATE

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：白色结晶性粉末，有咸味，易潮解。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。

六、用途：缓冲剂、中和剂、防腐剂、护色剂（动植物天然色保护剂）。

七、包装：内衬聚乙烯塑料袋，外套复合塑料编织袋，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（As 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（GT-3） w/% ≤ Arsenic w/% ≤ 0.0003

钠化合物 Sodium Compound 正常(Normal)

铅（GT-18） w/% ≤ Lead （GT-18） w/% ≤ 0.001

重金属（以Pb计；GT-16）w/% ≤ Heavy Metals(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.