Monoethanolamine is usually obtained by electrolytic potassium chloride solution or by reacting potassium carbonate with lime milk. It is used to prepare potassium salt and potassium soap. It can also be used as desiccant. It is prepared by electrolytic concentrated potassium chloride solution or by the action of potassium carbonate and lime milk. It is used as desiccant and absorbent for the preparation of oxalic acid and various potassium salts,

氢氧化钾精制过的1，4‐二氧环己烷应当避免与空气接触，进一步氯化,可得CHCl3和CCl4，无色易挥发液体，难燃烧，蒸气与空气形成爆炸性混合物,爆炸极限6，对皮肤和粘膜的刺激性比氯仿稍强,使用高浓度二氯甲烷时应注意。

1,4-dioxane refined by potassium hydroxide should avoid contact with air and be further chlorinated to obtain CHCl3 and CCl4. It is colorless, volatile liquid and difficult to burn. The vapor forms an explosive mixture with air. The explosion limit is 6. It is slightly more irritating to skin and mucous membrane than chloroform. Attention should be paid when using high concentration dichloromethane.

金昊化工常年经营医药化工,农药化工,精细化工,洗涤化工,水处理药剂,颜料染料及进口化工原料，金昊化工多年来承蒙各界朋友的鼎力支持与帮助公司与全国各地生产厂家及外国驻办事处建立了长期稳定的供应合作关系为方便广大用户提货快捷。

Jinhao chemical has been engaged in pharmaceutical chemical industry, pesticide chemical industry, fine chemical industry, washing chemical industry, water treatment agents, pigments, dyes and imported chemical raw materials for many years. Thanks to the full support and help of friends from all walks of life, Jinhao chemical has established a long-term and stable supply cooperation relationship with manufacturers all over the country and foreign offices in China, which is safe and fast for users to pick up goods.

氢氧化钾当聚合氯化铝絮凝剂和聚丙烯酰胺进行配合使用的时候，我们应视不同的水质按照先后顺序投加，而其药量也要通过试验确定，其实，聚合氧化铝也可以单用，但其比PAC高，效果不比加PAC的水质差，当然要分水质情况而定。

When potassium hydroxide is used in combination with polyaluminium chloride flocculant and polyacrylamide, we should add it in order according to different water quality, and its dosage should also be determined through experiments. In fact, polyaluminum oxide can also be used alone, but its price is higher than PAC, and the effect is not worse than that of PAC. Of course, it depends on the water quality.