Glutaric acid (CAS 110-94-1) is an important organic chemical raw material and intermediate. Its structural formula is HOOC (CH2) 3COOH. It is monoclinic columnar crystal or acicular crystal (in benzene), usually containing 1 molecule of crystal water. The melting point of anhydrous substance is 97.5~98 ℃, and the boiling point is 303 ℃ (101 kPa). Very soluble in water, absolute ethanol and ether, soluble in benzene, chloroform, slightly soluble in petroleum ether. Toxic. Mainly used as initiator for polymerization of synthetic resin and synthetic rubber; It is also used to prepare dimethyl glutarate and diethyl glutarate. Glutaric anhydride can be prepared by dehydration of glutaric acid. When cyclohexanone is oxidized with nitric acid to produce adipic acid, the by-product glutaric acid is obtained; It can also be prepared by liquid phase oxidation of cyclopentanone.
Properties and stability
1. It will not decompose under normal temperature and pressure, and it is forbidden to contact with alkali, oxidant and reductant.
2. Toxic. Glutaric acid was injected subcutaneously into rabbits and found to be severely toxic to kidneys. Oral administration is strictly prohibited. Operators shall wear masks and rubber gloves.
3. It exists in flue-cured tobacco, burley tobacco, oriental tobacco and smoke.
4. It is found in sugar beets.
5. Generally, it only contains one crystal water.
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