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Diols and diethylene glycol are two commonly used compounds in the field of chemicals, which have wide applications in industrial production, medicine, food, and other fields. Although their names are very similar, there are actually some obvious differences in chemical structure and properties between diols and diethylene glycol

From a chemical structure perspective, diols refer to compounds with two hydroxyl OH groups in their molecules, while diethylene glycol refers to compounds with two glycyl CH2OH groups in their molecules. This structural difference also leads to differences in the properties and uses of diols and diethylene glycol

From a property perspective, diols have a certain sweetness, while diethylene glycol has a bitter taste. This is also due to their different uses in food additives. Diols are often used as sweeteners, while diethylene glycol is mostly used to prepare medicines, essence, etc

In addition, diols and diethylene glycol also have their own applications in industrial production. Diols are commonly used in the synthesis of polymer materials such as polyether resins, polyester resins, polyether ester resins, and can also be used in the synthesis of pigments, drugs, etc. Diethylene glycol is widely used in the pharmaceutical industry to prepare oral solutions, injections, and other drugs

Overall, there are significant differences in chemical structure and applications between diols and diethylene glycol, but their applications in related fields have their own characteristics. It is important to be familiar with the differences between diols and diethylene glycol in order to use them correctly and choose the appropriate application scenario.