乙酸鉀

乙酸鉀   POTASSIUM ACETATE

一、化學名：乙酸鉀

二、分子式：C2H3KO2

三、分子量：98.14

四、CAS：127-08-2

五、性狀：白色結晶性粉末，有咸味，易潮解。1mol/l水溶液pH值為7.0-9.0。相對密度（d425）1.570, 熔點292℃, 極易溶于水(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：緩沖劑、中和劑、防腐劑、護色劑（動植物天然色保護劑）。

七、包裝：內襯聚乙烯塑料袋，外套復合塑料編織袋，每袋凈重25kg。

八、貯存與運輸：本品應貯存在干燥通風清潔的庫房中，裝載運輸時要輕裝輕放，防止包裝破損，防止受潮、受熱，運輸過程中防止雨淋受潮，應與有毒物品隔離。

質量指標 Specification FAO/WHO,1992 

含量(以干基計)w/%         ≥ Content（As Dry Basis）w/%         ≥ 99.0 

干燥失重(150℃,2h) w/%    ≤ Loss On Drying(150℃,2h) w/%      ≤ 8.0 

堿度 Alkalinity 正常(Normal) 

砷（GT-3） w/%             ≤ Arsenic  w/%                       ≤ 0.0003 

鈉化合物 Sodium Compound 正常(Normal) 

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

重金屬（以Pb計；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.