Itaconic acid

Itaconic acid is scientifically known as methylene succinic acid and methylene succinic acid. It is an unsaturated dibasic organic acid. It contains unsaturated double   

bonds and has active chemical properties. It can polymerize itself and other monomers such as acrylonitrile. It is slightly soluble in benzene, chloroform, ether, petroleum ether, carbon disulfide, soluble in water, ethanol, and acetone. It can undergo various addition reactions, esterification reactions, and polymerization reactions. It is an important raw material for the chemical synthesis industry and an important raw material for chemical production. Itaconic acid (itaconic acid), CH2=C(COOH)CH2COOH, is produced in large quantities by filamentous fungi, especially Aspergill-us itaconicus, which grows on the surface of plum juice. It is formed by decarboxylation of cis-aconitic acid. It can be used as an acidulant, pH regulator, and metal chelator.

Appearance: white crystals or powder. It has a special smell and can sublimate under vacuum.

Solubility: Soluble in water, ethanol, and acetone, slightly soluble in chloroform, benzene, and ether. It is not easy to volatilize and can decompose when overheated.

Itaconic acid is an unsaturated dibasic organic acid. It has relatively active chemical properties and is easy to polymerize. It can also copolymerize with other monomers, such as acrylonitrile, succinic acid, and styrene. It can also copolymerize with other monomers.

Uses: It is used as a copolymer monomer for polyacrylonitrile fiber, and can also be used to prepare plasticizers, lubricant additives, etc.

This substance is harmful to the environment, and special attention should be paid to water pollution.

Properties and stability

1. Avoid contact with alkalis and oxidants.

2. The product is less toxic and poses little health hazard, but its vapor is toxic. The equipment should be sealed during production, and the operator should wear protective equipment.

3. The chemical properties are relatively active, and it can polymerize itself or with different numbers of other monomers such as acrylonitrile and styrene. The vapor is toxic and easily decomposed when overheated.

4. It exists in smoke.

Storage method

Sealed packaging. Store in a cool, dry place away from light. It needs to be packed in a paper barrel lined with a plastic bag and stored tightly. Pay attention to moisture, heat and antioxidants. Storage and transportation should be carried out in accordance with general chemical regulations.

Uses

1. Polymers can be made into highly efficient deodorants by adding a small amount of natural substances. They can react with alkaline odors such as ammonia and amines and acidic odors such as hydrogen sulfide. They can also be made into a series of products such as paper and plastic film with deodorizing functions.

2. Itaconic acid can be copolymerized with styrene and butadiene to make S.B.R latex, which can be used for paper coating to make the paper strong and the printed patterns bright; it can be used for metal and concrete coatings, which are easy to color and not affected by natural conditions; it can be used as a paint additive to improve the quality of the paint; it can be used for carpet sizing to make synthetic fiber carpets durable.

3. Itaconic acid can be polymerized with acrylic acid or methacrylic acid or its esters to make resins, which can be used for surface coatings and emulsion paints. As leather coating, it can increase the plasticity of leather; as coating for automobiles, electrical appliances, and cold storage, it has the advantages of strong adhesion, beautiful color, and resistance to bad weather; as electrophoretic coating, it has excellent adhesion; adding polyvalent metal oxides can make dental adhesives with good extrusion performance, strong adhesion, and good physiological adaptability; adding chloroalkyl dimethyl benzyl ammonium chloride can make water-soluble coatings, which are used for food packaging materials and can reduce bacterial contamination on the surface of packaging.

4. Esters made from itaconic acid can be used in paints, weakly acidic ion exchange resins, lubricant additives, adhesives and plasticizers, powder-pressed plastics, and sealants.

5. Itaconic acid can be used in other derivatives as medicines, cosmetic reagents, lubricants, thickeners, herbicides, and to improve the performance of silk and wool weaving.

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

Itaconic acid contains two active carboxyl groups and a double bond in its molecule. The double bond and the carboxyl group are in a conjugated relationship, which makes itaconic acid very active. In addition to self-polymerization, it can also polymerize with different numbers of other monomers to form polymerized polymers. Therefore, it is widely used in the chemical synthesis industry.

Storage and transportation

Moisture-proof, sun-proof, rain-proof, no outdoor stacking, no mixing or transportation with toxic, odorous, colored powders or corrosive substances. Avoid contact with skin and eyes. If accidentally brought into the mouth or eyes, please wash with water.