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[Chemical Knowledge]：Between Illusions: Distinguishing Isophthalic Acid and Adipic Acid

Read： 607 Time：17months ago Source：Transform the World with Simplicity

Do you want to know the difference between isophthalic acid and adipic acid? This article will discuss their composition, properties, and uses in depth to help you better distinguish and apply them. Please continue reading below.

1. constitute
1. Isophthalic acid
isophthalic acid, the chemical formula is C8H6O4, is an organic compound composed of two methyl acid groups on the benzene ring. Its molecular formula is C6H4(COOH)2.
2. Adipic acid
Adipic acid, the chemical formula C6H10O4, is an organic compound consisting of two acid groups linked in a hexane molecule. Its molecular formula is HOOC(CH2)4COOH.

2. properties
1. Isophthalic acid
isophthalic acid is a colorless crystalline or white powdery solid, soluble in water and organic solvents. It has good thermal stability and light stability, and is not easy to decompose by heat or light. Therefore, isophthalic acid is widely used in the fields of synthetic polymers, resins and fibers.
2. Adipic acid
Adipic acid is a colorless liquid, soluble in water and organic solvents. It has a lower melting point and boiling point, and has good thermal stability. Because adipic acid has a long carbon chain, it can be used as a raw material for polymers with good softness and ductility, and is often used in the production of plastics, coatings and elastic fibers.

3. Uses
1. Isophthalic acid
Isophthalic acid is widely used in the synthesis of high-performance polyester fiber materials, such as polyester fibers. It can enhance the toughness, strength and abrasion resistance of the fiber, and at the same time give the fiber good dyeing performance. In addition, isophthalic acid can also be used in the synthesis of polymer resins, coatings and plastics.
2. Adipic acid
Adipic acid is mainly used in the production of polyester resins and plastics, such as polyester fibers, inks, coatings and adhesives. Its high handling properties and ability to improve durability have made adipic acid a common raw material in many industries.

summary:
by the distinction between isophthalic acid and adipic acid, we can see that there are differences in their composition, properties and uses. Isophthalic acid is mainly used in the synthesis of polymers and fiber materials, while adipic acid is mainly used in the production of polyester resins and plastics. In the field of chemicals and materials, it is very important to accurately understand and flexibly apply the differences between these two compounds. I hope this article can bring you some help and enlightenment.