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。
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质量指标
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Specification
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FAO/WHO,1992
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含量(以干基计),w/% ≥
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Content(On Dry Basis),w/% ≥
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99.0
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干燥失重(150℃,2h),w/% ≤
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Loss On Drying(150℃,2h), w/% ≤
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8.0
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碱度
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Alkalinity
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正常(Normal)
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砷(As),mg/kg ≤
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Arsenic(As),mg/kg ≤
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0.0003
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钠化合物
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Test fsodium
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正常(Normal)
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铅(Pb),mg/kg ≤
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Lead(Pb),mg/kg ≤
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0.001
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重金属(以Pb计),w/% ≤
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Heavy Metal(As Pb),w/% ≤
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0.002
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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 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) methanol (24.24g/100mL, 15℃), but insoluble in ether.
6、Usage: It is used as buffering agent, neutralizer, preservative and colfixative to
protect natural colors of animals plants.
7、Packing: It is packed with polyethylene bag as inner layer, 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 ventilative warehouse, kept away from heat moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.