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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,有咸味。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包裝,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 JECFA
          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)
          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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