Koh氢氧化钾是一种无机盐。无色晶体或白色粉末。无臭，味咸。在空气中易潮解，可燃，遇水分解生成氢气和氨气。与酸类作用则放出氢气而生成相应的碱溶液（如KOH+HCl=KClO+H2O）。

Koh potassium hydroxide is an inorganic salt. Colorless crystals or white powder. Odorless and salty in taste. It is easily deliquescent and flammable in the air, and decomposes into hydrogen and ammonia when exposed to water. Reacting with acids releases hydrogen gas and generates corresponding alkaline solutions (such as KOH+HCl=KClO+H2O).

koh氢氧化钾的制备方法：

Preparation method of koh potassium hydroxide:

1.将碳酸钾溶于水中，加入过量氯化钠后加热至80°C左右脱水成氧化钾（俗称烧碱），经冷却、结晶、分离得纯品氢氧化钾成品；也可用硫酸钠与碳酸钾反应制得。（此法有污染）

1. Dissolve potassium carbonate in water, add excess sodium chloride, heat to around 80 ° C, and dehydrate to form potassium oxide (commonly known as caustic soda). After cooling, crystallization, and separation, obtain pure potassium hydroxide product; It can also be prepared by reacting sodium sulfate with potassium carbonate. (This method has pollution)

2.由金属锂盐直接电解熔融氯化钠而制成；或用浓盐酸处理可得到固体氢氧化锂后再电解熔融氯化钠即得液体氢氧化锂成品。（此法有污染）

2. Made by direct electrolysis and melting of sodium chloride with metal lithium salts; Alternatively, solid lithium hydroxide can be obtained by treating with concentrated hydrochloric acid and then electrolyzing and melting sodium chloride to obtain liquid lithium hydroxide products. (This method has pollution)

3.由金属镁条置换出二氧化碳气体中的氧原子而制成的。（此法有危险）

3. Made by replacing oxygen atoms in carbon dioxide gas with metal magnesium strips. (This method is dangerous)

4.可由碳酸钙与水反应制得。（此法有危险）

4. It can be prepared by reacting calcium carbonate with water. (This method is dangerous)

5.可由氯酸钾与浓盐酸反应制取，（该反应会产生有毒的氯气）。

5. It can be prepared by reacting potassium chlorate with concentrated hydrochloric acid, which produces toxic chlorine gas.

koh氢氧化钾的应用领域：

Application fields of koh potassium hydroxide:

1.生产各种肥皂：

1. Production of various soaps:

（1）生产洗涤用品时所用的碱性物质主要是苛性碱（NaOH）、烧碱和火碱（Na2CO3）；其中烧碱是主要的成分之一。

(1) The alkaline substances used in the production of washing products are mainly caustic soda (NaOH), caustic soda, and caustic soda (Na2CO3); Caustic soda is one of the main components.

（2）生产洗衣粉时所用的碱性物质主要是偏铝酸钠（NaAlS04）、重质碳酸钙和水玻璃（CaCO3·5H2O）。

(2) The alkaline substances used in the production of laundry detergent are mainly sodium aluminate (NaAlS04), heavy calcium carbonate, and water glass (CaCO3 · 5H2O).

（3）生产漂白粉时用到的碱性物质是次氯酸钠和漂粉精。

(3) The alkaline substances used in the production of bleaching powder are sodium hypochlorite and bleaching powder essence.

（4）在生产软水剂时用到了硅酸纳。

(4) Sodium silicate was used in the production of water softeners.

（5）生产消毒剂时用到了过氧乙酸。

(5) Peroxyacetic acid was used in the production of disinfectants.

（6）在生产除锈剂和脱漆剂时用到草酸。

(6) Oxalic acid is used in the production of rust removers and paint removers.

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