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無水乙酸鉀

無水乙酸鉀

產品描述/ Product Description

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,易潮解,有鹹味。1mol/l水溶液pH值為7.0-9.0。相對密度(d425)1.570, 熔點292℃, 極易溶於水(235g/100mL, 20℃; 492g/100mL, 62℃)、乙醇(33g/100mL)和甲醇(24.24g/100mL, 15℃),不溶於乙醚。

六、用途:緩衝劑、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,外套複合塑料編織袋包裝,每袋淨重25kg。

八、貯存與運輸:本品應貯存在幹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 JECFA
含量(以幹基計),w/%         ≥ Content(As Dry Basis),w/%     ≥ 99.0
幹燥失重(150℃,2h),w/%     ≤ Loss On Drying(150℃,2h), w/%   ≤ 8.0
堿度 Alkalinity 正常(Normal)
鉀化合物 Test for potassium Pass Test
鈉化合物 Test for sodium 正常(Normal)
鉛,mg/kg           ≤ Lead,mg/kg           ≤ 2
乙酸鹽 Test for acetate Pass Test
pH值(50g/L溶液,25℃) pH Value (50g/L solution,25℃) 7.5-9.0

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.

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