2-Methylsuccinic acid NEW
Price | Get Latest Price |
Package | 25KG |
Min. Order: | 25KG |
Supply Ability: | 10 tons |
Update Time: | 2021-12-30 |
Product Details
Product Name: 2-Methylsuccinic acid | CAS No.: 498-21-5 |
Min. Order: 25KG | Purity: 99% |
Supply Ability: 10 tons | Release date: 2021/12/30 |
2-Methylbutanedioic acid is a compound used in organic synthesis, made by fermentation under the liquid surface of Aspergillus terreus strains, and is a colorless, odorless, moisture-absorbing crystal. Low toxicity, but its vapor is toxic. Easily polymerized, also can be copolymerized with other monomers. The substance may be harmful to the environment, and special attention should be paid to water bodies.
Production method:
Made from butenoic acid by the following steps. Mix butenoic acid and ethanol with carbon tetrachloride, add sulfuric acid, reflux reaction for 12h, recover ethanol and carbon tetrachloride, and salting to get ethyl crotonate. Ethyl crotonate, ethanol and aqueous sodium cyanide solution back Chemicalbook reaction for 5h. Then add barium hydroxide solution, concentrated under reduced pressure to porridge, and cooled. Add nitric acid and violently react to release hydrogen cyanide gas. Concentrate under reduced pressure until dry, extract with benzene and ether to get crude product, and finally recrystallize each with benzene and water once, that is to get finished product.
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- Since: 2016-03-28
- Address: 269 south of Jungong Road, Dingzhou City