What is itaconic acid used for? Learn about the uses of itaconic acid in one article

[Alias]Methylenesuccinic acid, 2-propylene-1.2-dicarboxylic acid.

［Molecular Formula］C5H6O4

［Structural Formula］CH2CCOOH

[Properties]Itaconic acid is a colorless hygroscopic crystal with a special odor. It is not easy to volatilize and can sublimate under vacuum. Relative density 1.6320 (20℃), melting point 167-168℃ (decomposition). Soluble in water, 7.7g can be dissolved in 100mL water at 20℃. It is also soluble in ethanol, acetone and chloroform, and slightly soluble in benzene, chloroform, ether, carbon disulfide and petroleum ether. Dissolve it in water or alcohol, add an initiator and heat it appropriately, polymerization will occur, and it can also be copolymerized with other monomers. Crystals are not easy to polymerize. It reacts with sulfite dichloride to generate itaconic anhydride.

[Use]Itaconic acid is an important raw material for manufacturing acrylic fibers, synthetic resins, ion exchange resins and plastics. It is also used to prepare plasticizers, lubricating oil additives, paint dispersants, paper coating agents, carpet surface agents and adhesives, etc.

[Brief preparation method]

① Use carbon wood compounds (such as starch, glucose) or sugar cane, beet, etc. as raw materials, select appropriate strains for fermentation, and then filter, concentrate, decolorize, It is prepared by crystallization and other processes, and its reaction formula is as follows:

② Use succinic anhydride or succinic acid diester as the raw material and use mullite sulfate as the catalyst. It first reacts with formaldehyde to produce citraconic acid, and then heats to isomerize to obtain itaconic acid.

[Safety and Protection]This product has very little toxicity. Packed in paper drums lined with plastic bags and stored and transported according to general chemical regulations.