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认识氢氧化钾从它的制备工作看

发布来源:http://www.jinhao360.com    更新时间:2022-08-04 点击数:

氢氧化钾是基础化学工业中的重要产品,主要用作钾盐和钾碱的生产原料。在医药、轻工业、电化工、纺织等领域也有广泛应用。认识氢氧化钾从它的制备工作看是怎样的呢?下面就来了解下吧。
Potassium hydroxide is an important product in the basic chemical industry, which is mainly used as raw material for the production of potassium salt and potash. It is also widely used in medicine, light industry, electrochemistry, textile and other fields. How to understand potassium hydroxide from its preparation? Now let's learn about it.
氢氧化钾是很典型的强碱,很多行业都有在应用,是基础化学工业的重要产品,大部分的应用都是因为氢氧化钾可以和酸反应,以及氢氧化钾本身的腐蚀性。那么氢氧化钾在自然界中存在吗?
Potassium hydroxide is a typical strong alkali, which is used in many industries. It is an important product in the basic chemical industry. Most of its applications are due to the reaction of potassium hydroxide with acid and the corrosiveness of potassium hydroxide itself. Does potassium hydroxide exist in nature?
其实氢氧化钾在自然界中是不会单独存在的,不同的原料需要通过化学反应混合制备,根据产品浓度和原料不同,制备方法也不同。目前生产厂家主要采用溶液电解和离子膜电解。两种方法通过各种工艺制备的产品浓度不同。
In fact, potassium hydroxide does not exist alone in nature. Different raw materials need to be prepared by chemical reaction. According to the concentration of products and raw materials, the preparation methods are also different. At present, manufacturers mainly use solution electrolysis and ion-exchange membrane electrolysis. The concentration of products prepared by the two methods is different through various processes.
氢氧化钾
氢氧化钾可以通过电解高纯氯化钾水溶液来制备。所用的电解槽在形式和工艺上类似于氢氧化钠。当使用隔膜电解槽时得到的电解液含有10%~15%质量的氢氧化钾和大约10%质量的氯化钾。经蒸发、浓缩、冷却后,大部分氯化钾结晶析出,分离后得到含45%~50%氢氧化钾(含06%氯化钾)的产品。
Potassium hydroxide can be prepared by electrolysis of high-purity potassium chloride aqueous solution. The electrolyzer used is similar to sodium hydroxide in form and process. When using diaphragm electrolyzer, the electrolyte obtained contains 10% - 15% mass potassium hydroxide and about 10% mass potassium chloride. After evaporation, concentration and cooling, most of the potassium chloride crystallizes out, and the product containing 45% - 50% potassium hydroxide (containing 06% potassium chloride) is obtained after separation.
汞电解可以制备高纯度的氢氧化钾。但氯化钾水溶液中重金属杂质的含量应控制在01ppm以下,以避免氯气中氢含量过高。离子膜电解使用特殊的离子交换膜。氢氧化钾比氢氧化钠更难脱水。工业固体氢氧化钾纯度为88%~92%,固体有块状和片状两种。液体氢氧化钾有两种浓度规格:45%和50%。
High purity potassium hydroxide can be prepared by mercury electrolysis. However, the content of heavy metal impurities in potassium chloride aqueous solution should be controlled below 01ppm to avoid excessive hydrogen content in chlorine. Ion exchange membrane electrolysis uses a special ion exchange membrane. Potassium hydroxide is more difficult to dehydrate than sodium hydroxide. The purity of industrial solid potassium hydroxide is 88%~92%, and there are two kinds of solids: massive and flaky. Liquid potassium hydroxide has two concentration specifications: 45% and 50%.
以上就是给大家总结的关于氢氧化钾的制备方面的内容,相信大家都有进一步的学习了。希望您在进行生产的时候能够选择一种合适的方法,还想了解更多资讯,请继续关注我们http://www.jinhao360.com吧。
The above is the summary of the preparation of potassium hydroxide for you. I believe you have further study. I hope you can choose a suitable method during production. If you want more information, please continue to pay attention to us http://www.jinhao360.com OK.

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