氢氧化钾外观为白色片状或粉状，具有强烈腐蚀性和强碱性。氢氧化钾溶液外观则为无色透明状溶液。氢氧化钾暴露在空气中时，易被空气中的水分而潮解，并吸收二氧化碳而成碳酸钾。

Potassium hydroxide appears as a white flake or powder, with strong corrosiveness and alkalinity. The appearance of potassium hydroxide solution is colorless and transparent. When potassium hydroxide is exposed to the air, it is easily deliquescent by the moisture in the air and absorbs carbon dioxide to form potassium carbonate.

氢氧化钾易溶于水、乙醇或酸时，会释放大量的热量。氢氧化钾溶液化学式为KOH，分子量为56.1，沸点为1324℃，熔点为360.4℃，相对密度(水=1)为2.04。0.1mol/L溶液的pH为13.5。

When potassium hydroxide is easily soluble in water, ethanol, or acid, it releases a large amount of heat. The chemical formula of potassium hydroxide solution is KOH, with a molecular weight of 56.1, a boiling point of 1324 ℃, a melting point of 360.4 ℃, and a relative density (water=1) of 2.04. The pH of 0.1mol/L solution is 13.5.

氢氧化钾主要被用于干燥剂、吸收剂。还用于电镀、雕刻、石印术等。在纺织工业中，用于印染和漂白作用，并大量用作制造人造纤维、聚酯纤维的主要原料。

Potassium hydroxide is mainly used as a desiccant and absorbent. It is also used for electroplating, carving, lithography, etc. In the textile industry, it is used for printing, dyeing, and bleaching, and is widely used as the main raw material for manufacturing artificial fibers and polyester fibers.

氢氧化钠俗称片碱，外观为白色半透明状的固体，具有强腐蚀性的强碱。氢氧化钠溶于水时会形成碱性溶液，其水溶液没有吸水性，但能与酸发生反应并放热，可能会产生有毒性烟雾。

Sodium hydroxide, commonly known as flake alkali, is a white semi transparent solid with strong corrosiveness. When sodium hydroxide is dissolved in water, it forms an alkaline solution. Its aqueous solution does not absorb water, but it can react with acids and release heat, which may produce toxic smoke.

氢氧化钠相对密度2.130；熔点318.4℃；沸点1390℃。氢氧化钠的质量标准分别有含量为99片碱和96片碱。

Sodium hydroxide relative density 2.130; Melting point 318.4 ℃; Boiling point 1390 ℃. The quality standards for sodium hydroxide are 99 tablets of alkali and 96 tablets of alkali, respectively.

氢氧化钠广泛用于粘胶纤维、人造丝及绵织品等轻纺工业方面，农药、染料、橡胶和化学工业方面、石油钻探，精炼石油油脂和提炼焦油的石油工业。

Sodium hydroxide is widely used in light textile industries such as viscose fibers, rayon, and cotton fabrics, as well as in the fields of pesticides, dyes, rubber, and chemical industries, petroleum drilling, refining of petroleum oils, and refining of tar in the petroleum industry.

氢氧化钾溶液的吸湿性比氢氧化钠强，所以常用氢氧化钾做干燥剂。更多相关事项就来我们网站http://qxu1539600089.my3w.com咨询吧！

Potassium hydroxide solution has stronger moisture absorption than sodium hydroxide, so potassium hydroxide is commonly used as a desiccant. For more related matters, come to our website http://qxu1539600089.my3w.com Consult!