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Ethylene glycol (also known as ethylene glycol) and diethylene glycol (also known as propylene glycol) are two common chemical raw materials that play important roles in industrial production. Although they have similarities in name and molecular structure, there are some obvious differences in their use and properties

From a chemical structure perspective, the chemical formula of ethylene glycol is C2H6O2, while the chemical formula of diethylene glycol is C3H8O2. That is to say, the molecular structures of the two are not the same, and the atomic combinations of carbon, hydrogen, and oxygen are also not entirely the same. This also leads to differences in their properties and uses

Ethylene glycol is mainly used as a solvent and temperature regulator in industry. Due to its strong hygroscopicity and solubility, ethylene glycol is commonly used as a refrigerant, antifreeze, air conditioning system, etc. Diethylene glycol is more commonly used in fields such as medicine, food, and cosmetics as a solvent, additive, or thickener

In addition, ethylene glycol and diethylene glycol also differ in toxicity. Ethylene glycol can decompose at high temperatures to produce toxic acetaldehyde, which poses a certain risk to human health. However, the toxicity of diethylene glycol is much lower than that of ethylene glycol, and it is usually considered a relatively safe chemical

Overall, ethylene glycol and diethylene glycol are two important chemical raw materials that have extensive applications in industrial production and daily life. Although they have some similarities, there are significant differences in their use and properties. Understanding these differences not only helps to use them correctly, but also helps to avoid potential security risks.