Name: Itaconic acid

English name: Itaconic acid

Other names: methylene succinic acid methylene succinic acid methylene succinic acid

Chemical formula: C5H6O4

Molecular weight: 130.1

CAS Registry Number: 97-65-4

EINECS accession number: 202-599-6

Melting point (ºC): 175

Boiling point (ºC, normal pressure): 268 (sublimation)

Water solubility: slightly soluble in benzene, chloroform, ether, petroleum ether, carbon disulfide, soluble in water, ethanol, and acetone.

Degree of density (g/mL, 20°C): 1.632

External view: white crystalline powder with special smell and hygroscopicity.

Flash point (ºC): 198.7

Should be used: can be used as a sour agent, pH regulator, metal chelating agent

Security description: S26 S36

Hazard symbol: R36/37/38

use

1 The polymer can be made into a high-efficiency deodorant by adding a small amount of natural substances, which can react with acidic odors such as ammonia, amine alkaline odor and hydrogen sulfide, and can also be made into a series of products such as paper and plastic film with deodorizing function .

2. Copolymerization of itaconic acid, styrene and butadiene can be used to make SBR latex, which can be used for paper coating to make the paper tough and the printed pattern bright; used for metal and concrete coatings, easy to color and not affected by natural conditions; Used as paint additive to improve paint quality; used in carpet sizing can make synthetic fiber carpet durable.

3. Itaconic acid and acrylic acid or methacrylic acid or its esters are polymerized to make resin, which can be used for surface coating and emulsion paint. As a leather coating, it can increase the plasticity of leather; as a coating for automobiles, electrical appliances, and cold storage, it has the advantages of strong adhesion, beautiful color and resistance to harsh weather; as an electrophoretic coating, it has excellent adhesion; it can be made by adding multivalent metal oxides. To form a dental adhesive with good extrusion performance, strong bonding force and good physiological adaptability; adding chloroalkyl dimethyl benzyl ammonium chloride can make water-soluble coatings for food packaging materials, which can reduce packaging Surface contamination with bacteria.

4. Ester made from itaconic acid can be used in paints, weak acid ion exchange resins, lubricant additives, binders and plasticizers, powdered plastics and sealants.

5. Itaconic acid used in other derivatives can be used as medicine, cosmetics reagent, lubricant, thickener, herbicide and improve the performance of silk wool.

6. Itaconic acid is the raw material for the production of citraconic acid, mesaconic acid and itaconic anhydride.