Potassium hydroxide is a white powder or flake solid, with strong alkalinity and corrosiveness. It is easy to absorb moisture in the air and deliquesce, and absorb carbon dioxide to form potassium carbonate. Used as desiccant, absorbent, oxalic acid and potassium salt, electroplating, engraving and lithography. What is the synthetic principle of potassium hydroxide? Today, let's introduce the synthesis principle of potassium hydroxide?

一、水银电解法电解液的配制同隔膜电解法。电解室中以石墨(或金属)作阳极，水银作阴极，电解产生的氯气送氯气干燥工序，生成的钾汞齐流入解汞室。大部分未反应的氢氧化钾以淡盐水状态经处理后，返回原料溶解工序。钾汞齐与清水反应生成氢氧化钾和氢气。因解汞室出来的氢氧化钾浓度为45%50%，可作为液体氢氧化钾产品，也可再经熬碱锅蒸浓成固碱或制成片状氢氧化钾产品。

1、 The preparation of electrolyte for mercury electrolysis is the same as that of diaphragm electrolysis. In the electrolytic chamber, graphite (or metal) is used as anode and mercury as cathode. The chlorine generated by electrolysis is sent to the chlorine drying process, and the generated potassium amalgam flows into the mercury dissolving chamber. Most unreacted potassium hydroxide is treated in light brine and returned to the raw material dissolution process. Potassium amalgam reacts with clean water to produce potassium hydroxide and hydrogen. Because the concentration of potassium hydroxide from mercury dissolving chamber is 45% to 50%, it can be used as liquid potassium hydroxide product, or evaporated into solid alkali or made into flake potassium hydroxide product through alkali boiling pot.

二、隔膜电解法原料氢氧化钾在化盐槽溶化成饱和溶液，加热90℃时分别加入碳酸钾、苛性钾、氯化钡除去钙、镁和硫酸根等杂质，经沉降除渣、盐酸中和、精制的含氢氧化钾280315g/L的氢氧化钾溶液经预热到7075℃后进行电解，得氢氧化钾、氯气和氢气。隔膜法所得氢氧化钾浓度为10%11%，需通过蒸发浓缩和冷却澄清，制得含45%50%氢氧化钾溶液;也可继续在熬碱锅中浓缩，经脱色，制得固体氢氧化钾，或经制片成片状氢氧化钾产品。

2、 Potassium hydroxide, the raw material of diaphragm electrolysis method, is dissolved into a saturated solution in a salt tank. When heated to 90 ℃, potassium carbonate, caustic potassium and barium chloride are added respectively to remove impurities such as calcium, magnesium and sulfate. The 280-315g / L potassium hydroxide solution containing potassium hydroxide is preheated to 70-75 ℃ for electrolysis to obtain potassium hydroxide, chlorine and hydrogen. The concentration of potassium hydroxide obtained by diaphragm method is 10% to 11%, which needs to be concentrated by evaporation and clarified by cooling to prepare a solution containing 45% to 50% potassium hydroxide; It can also continue to concentrate in the alkali boiling pot and decolorize to prepare solid potassium hydroxide, or flake potassium hydroxide products.

另外工业上制取氢氧化钾是电解氢氧化钾的水溶液。因为氢氧化钾比氢氧化钠难脱水，市售品的纯度一般只能达到85%86%。如需提纯可按照提纯氢氧化钠的相同的方法进行提纯。以上就是我们氢氧化钾厂家为大家介绍氢氧化钾的合成原理，更多的知识欢迎关注我们的网站。

In addition, the industrial preparation of potassium hydroxide is the aqueous solution of electrolytic potassium hydroxide. Because potassium hydroxide is more difficult to dehydrate than sodium hydroxide, the purity of commercially available products can only reach 85% to 86%. If purification is required, it can be purified in the same way as sodium hydroxide. The above is our potassium hydroxide manufacturer to introduce the synthesis principle of potassium hydroxide. For more knowledge, please pay attention to our website.