Potassium hydroxide is an inorganic compound with the chemical formula of KOH. It is a common inorganic base with strong alkalinity. The pH of 0.1mol/L solution is 13.5. It is soluble in water, ethanol, and slightly soluble in ether. It is easy to absorb water in the air and deliquescence. It absorbs carbon dioxide to form potassium carbonate, which is mainly used as the raw material for producing potassium salts, as well as for electroplating, printing and dyeing. The specific uses are as follows:

1、用于电镀、雕刻、石印术等。

1. For electroplating, engraving, lithography, etc.

2、用作钾盐生产的原料，如高锰酸钾、碳酸钾等。

2. It is used as raw material for potassium salt production, such as potassium permanganate, potassium carbonate, etc.

3、在医药工业中，用于生产钾硼氢、安体舒通、沙肝醇、丙酸睾丸素、黄体酮、香兰素等。

3. In the pharmaceutical industry, it is used to produce potassium borohydride, spironolactone, arganol, testosterone propionate, progesterone, vanillin, etc.

4、在轻工业中用于生产钾肥皂、碱性蓄电池、化妆品（如冷霜、雪花膏和洗发膏）。

4. In light industry, it is used to produce potassium soap, alkaline battery and cosmetics (such as cold cream, cream and shampoo).

5、在染料工业中，用于生产还原染料，如还原蓝RSN等。

5. In the dye industry, it is used to produce vat dyes, such as vat blue RSN.

6、用作分析试剂、皂化试剂、二氧化碳和水分的吸收剂。

6. Used as an absorbent for analytical reagents, saponification reagents, carbon dioxide and water.

7、在纺织工业中，用于印染、漂白和丝光，并大量用作制造人造纤维、聚酯纤维的主要原料，也用于用于制造三聚氰胺染料。

7. In the textile industry, it is used for printing and dyeing, bleaching and mercerizing, and is largely used as the main raw material for manufacturing man-made fibers and polyester fibers, as well as for manufacturing melamine dyes.

8、还用于冶金加热剂和皮革脱脂等方面。

8. It is also used in metallurgical heating agent and leather degreasing.

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