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[Chemical Knowledge]：The Difference Between Ethylene and Propylene Glycol: Do You Really Know Them?

Read： 763 Time：17months ago Source：Transform the World with Simplicity

Ethylene and propylene glycol are two chemicals that we often come into contact with in our lives, and they have important uses in their respective fields. However, many people do not know the difference between them, or even confuse them. This article will introduce the difference between ethylene and propylene glycol from the aspects of chemical structure, use and characteristics.

from the chemical structure, ethylene is a carbon-carbon double bond hydrocarbons, chemical formula C2H4, is a colorless, toxic gas. Ethylene is mainly used in the synthesis of polyethylene and other chemical products, and can also be used in the production of rubber, synthetic resins and solvents. Propylene glycol is a compound containing alcohol functional groups, chemical formula C3H8O2, is a colorless, odorless liquid. Propylene glycol is mainly used in the manufacture of solvents, plastics, lubricants and antifreeze products.

ethylene and propylene glycol also differ in use. Ethylene is mainly used in the synthesis of polyethylene, vinyl alcohol, ethylene vinyl acetate and other chemical products, is widely used in plastics, rubber, textiles and pesticides and other industries. Propylene glycol is mainly used in the manufacture of antifreeze, solvents, lubricants and artificial aerosols and other products, can also be used in medicine, food and cosmetics and other fields.

ethylene and propylene glycol also have different physical properties. Ethylene is a colorless, pungent gas, flammable, explosive, and can be dissolved in many organic solvents. Propylene glycol is a colorless, tasteless liquid with good water solubility and hygroscopicity, and can react with many compounds.

To sum up, ethylene and propylene glycol have obvious differences in chemical structure, application and physical properties. Through the introduction of this article, I believe readers have a deeper understanding of these two chemicals. In daily life, we should use and store them correctly according to their different characteristics to avoid unnecessary safety and environmental problems.

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