無機(jī)工業(yè)用作生產(chǎn)鉀鹽，如高錳酸鉀、亞硝酸鉀、磷酸氫二鉀等的原料。日化工業(yè)用作制造鉀肥皂、洗污肥皂、洗頭軟皂、雪花膏、冷霜、洗發(fā)膏等的原料。制藥工業(yè)用于制造黃體酮、香蘭素等原料。染料工業(yè)用于制造三聚氰胺染料。電池工業(yè)用于制造堿性蓄電地。
The inorganic industry is used as raw materials for the production of potassium salts, such as potassium permanganate, potassium nitrite, dipotassium hydrogen phosphate, etc. The daily chemical industry is used as raw materials for making potassium soap, washing soap, shampoo soap, cream, cold cream, shampoo, etc. Pharmaceutical industry is used to manufacture raw materials such as progesterone and vanillin. The dye industry is used to make melamine dyes. The battery industry is used to make alkaline storage areas.
用作皂化試劑、二氧化碳和水分的吸收劑，分析試劑，堿性劑；可用作制品發(fā)色劑，冶金加熱劑和皮革脫脂等方面；用作干燥劑、吸收劑，還用于電鍍、雕刻、石印術(shù)等；
It can be used as saponification reagent, carbon dioxide and water absorbent, analytical reagent, alkaline agent, product coloring agent, metallurgical heating agent and leather degreasing agent, desiccant, absorbent, electroplating, carving, lithography, etc;

氫氧化鉀可從電解高純度的氯化鉀水溶液制得。所用的電解槽形式以及生產(chǎn)過程類似氫氧化鈉。使用隔膜電解槽時(shí)，所得的電解液含有10％～15％(質(zhì)量)的氫氧化鉀和約10％（質(zhì)量）的氯化鉀。經(jīng)蒸發(fā)、濃縮、冷卻，大部分的氯化鉀結(jié)晶析出，分離后得到含氫氧化鉀45％～50％的產(chǎn)品(含氯化鉀0.6％)。
Potassium hydroxide can be obtained by electrolysis of high purity aqueous potassium chloride solution. The type of electrolyzer used and the production process are similar to sodium hydroxide. When the diaphragm electrolyzer is used, the obtained electrolyte contains 10% – 15% (mass) potassium hydroxide and about 10% (mass) potassium chloride. After evaporation, concentration and cooling, most of the potassium chloride crystallizes and precipitates. After separation, the product containing 45% – 50% potassium hydroxide (containing 0.6% potassium chloride) is obtained.
采用水銀電解法可以制得高純度的氫氧化鉀，但應(yīng)控制氯化鉀水溶液中重金屬雜質(zhì)的含量在0.1ppm以下,以免氯氣中含氫過高。采用離子膜電解法須使用專用的離子交換膜。氫氧化鉀比氫氧化鈉難于脫水。工業(yè)固體氫氧化鉀的純度為88％～92％，固體有塊狀和片狀兩種。液體氫氧化鉀有45％和50％兩種濃度規(guī)格。
High purity potassium hydroxide can be produced by mercury electrolysis, but the content of heavy metal impurities in the aqueous solution of potassium chloride should be controlled below 0.1ppm to avoid high hydrogen content in chlorine gas. Special ion exchange membrane must be used for the ion-exchange membrane electrolysis. Potassium hydroxide is more difficult to dehydrate than sodium hydroxide. The purity of industrial solid potassium hydroxide is 88% – 92%. There are two kinds of solid: block and sheet. Liquid potassium hydroxide has two concentration specifications of 45% and 50%.