氢氧化钾又名苛性钾、苛性碱、钾灰，其化学式为KOH，是一种白色的粉末或片状固体。氢氧化钾是一种强碱，因此它也具有强腐蚀性。它的化学性质可以跟烧碱相类比，都是会对人体造成灼伤，若不慎吸入会强烈刺激呼吸道。不慎口服烧伤消化道时甚至有可能引起致死。因此慎用！

Potassium hydroxide, also known as caustic potassium, caustic alkali, or potassium ash, has the chemical formula KOH and is a white powder or flake solid. Potassium hydroxide is a strong alkali, therefore it also has strong corrosiveness. Its chemical properties can be compared to caustic soda, which can cause burns to the human body and can strongly irritate the respiratory tract if accidentally inhaled. Accidental oral administration of burns to the digestive tract may even cause death. Therefore, use with caution!

既然氢氧化钾有如此大的潜在危害，为什么说它能去油污被人们所使用呢？

Since potassium hydroxide has such great potential hazards, why can it be used by people to remove oil stains?

这是因为，油脂实际上是混甘油酯的混合物，还有1%到1.3%的其他成份如游离的多种脂肪酸、糖类、甾醇、高级醇、高级烃、维生素和色素等。

This is because oil is actually a mixture of mixed glycerides, with 1% to 1.3% of other components such as free fatty acids, sugars, sterols, higher alcohols, higher hydrocarbons, vitamins, and pigments.

在酸、碱、酶的作用下油脂发生了水解反应，生成了三分子高级脂肪酸和一分子甘油之故。

Under the action of acids, alkalis, and enzymes, oil undergoes hydrolysis reactions, generating three molecules of higher fatty acids and one molecule of glycerol.

如果单在碱性条件下例如氢氧化钾的条件下水解则生成甘油和高级脂肪酸的钠盐，这盐和甘油都能与水混溶，被水冲走。所以氢氧化钾除油污能力是非常强的。

If hydrolyzed solely under alkaline conditions, such as potassium hydroxide, it produces sodium salts of glycerol and higher fatty acids, both of which can be miscible with water and washed away by water. So potassium hydroxide has a very strong ability to remove oil stains.

但鉴于其强腐蚀性，在操作时应严格遵守操作规程。条件允许的话操作人员佩戴头罩型电动送风过滤式防尘呼吸器，穿橡胶耐酸碱服，戴橡胶耐酸碱手套。远离易燃、可燃物。避免产生粉尘。避免与酸类接触。

However, due to its strong corrosiveness, strict adherence to operating procedures should be observed during operation. If conditions permit, the operator should wear a hood type electric air supply filter dust respirator, rubber acid and alkali resistant clothing, and rubber acid and alkali resistant gloves. Keep away from flammable and combustible materials. Avoid generating dust. Avoid contact with acids.

搬运时要轻装轻卸，防止包装及容器损坏。日常使用氢氧化钾除油污时若皮肤不慎接触应立即脱去污染衣着，用大量的清水冲洗，严重时应及时就医。更多相关事项就来我们网站http://qxu1539600089.my3w.com咨询吧！

When transporting, it is necessary to load and unload gently to prevent damage to the packaging and containers. When using potassium hydroxide to remove oil stains in daily use, if the skin accidentally comes into contact, immediately remove contaminated clothing and rinse with plenty of water. In severe cases, seek medical attention promptly. For more related matters, come to our website http://qxu1539600089.my3w.com Consult!