How much do you know about the properties and uses of azelaic acid as a plasticizer?

[Alias]Azalea acid.

［Molecular Formula］C9H16O4

［Structural Formula］HOOC(CH2)7COOH

[Properties]Colorless or light yellow monoclinic needle-shaped or leaf-shaped crystals of azelaic acid, or crystalline powder . The relative density is 1.225 (25℃), the melting point is 106.5℃, the boiling point is 226℃ (1.33kpa), the refractive index is 1.4303 (110℃), decarboxylation occurs at 320-340℃, and anhydrous is formed above 360℃. Slightly soluble in cold water, soluble in hot water, ethanol, ether and acetone.

[Use]Organic synthesis raw material, used to prepare diethyl azelate, dioctyl azelate and other esters, Used as plasticizer and lubricant. Azelaic acid can be dehydrated with ammonia to produce azelonitrile, which is an important intermediate for the preparation of nylon-9. It is also a raw material for manufacturing alkyd resins, fragrances and capacitor empowering foils. It can also be used as a polymer modifier and unsaturated polyester additive to improve cold resistance, softness and impact resistance.

[Brief preparation method]

① Use oleic acid as raw material, undergo ozone oxidation to make oleic acid, and then further make a mixture of azelaic acid and azelaic acid, and obtain azelaic acid after separation acid.

②Castor oil is produced by thermal cracking.

[Safety and Protection]This product is non-toxic. Industrial products are packed in plastic barrels with a net weight of 25kg; reagents are packed in glass bottles. Store and transport according to general chemical regulations. Keep sealed.