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、用于電鍍、雕刻、石印術(shù)等。

1. For electroplating, engraving, lithography, etc.

2、用作鉀鹽生產(chǎn)的原料，如高錳酸鉀、碳酸鉀等。

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

3、在醫(yī)藥工業(yè)中，用于生產(chǎn)鉀硼氫、安體舒通、沙肝醇、丙酸睪丸素、黃體酮、香蘭素等。

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

4、在輕工業(yè)中用于生產(chǎn)鉀肥皂、堿性蓄電池、化妝品（如冷霜、雪花膏和洗發(fā)膏）。

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

5、在染料工業(yè)中，用于生產(chǎn)還原染料，如還原藍RSN等。

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

6、用作分析試劑、皂化試劑、二氧化碳和水分的吸收劑。

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

7、在紡織工業(yè)中，用于印染、漂白和絲光，并大量用作制造人造纖維、聚酯纖維的主要原料，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、還用于冶金加熱劑和皮革脫脂等方面。

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

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