What Is Cyclopentanone?
Cyclopentanone, represented by the chemical formula (CH2)4CO, is a cyclic ketone with a five-membered ring structure. It is a colorless liquid with a characteristic odor, similar to that of methyl methacrylate, and is known for its volatility.
With a molecular weight of 84.12 g/mol, a density of 0.95 g/cm3, a melting point of -58.2 °C, a boiling point of 130.6 °C, and CAS number 120-92-3, cyclopentanone is used across various industries.
Uses of Cyclopentanone
Cyclopentanone serves as a synthetic intermediate in the manufacturing of pharmaceuticals, pesticides, rubber chemicals, and electronic materials, including as a solvent in wafer manufacturing. It’s integral in the synthesis of plant-derived substances like jasmonic acid, a phytohormone involved in plant stress responses and growth processes.
1. Raw Material for Plant-Derived Substances
As a critical component in various plant hormones and substances, cyclopentanone’s derivatives, such as jasmonic acid, play roles in fruit ripening, senescence, and stress tolerance. These substances are synthesized within and transported across plant tissues, aiding in environmental adaptability and defense mechanisms.
2. Raw Material for Flavors and Fragrances
Cyclopentanone derivatives are key in creating fragrances, contributing to the aromatic qualities of perfumes and other scented products. These derivatives include methyl dihydrojasmonate and magnolione, among others.
3. Metal Cleaning Agent
Utilized in metal cleaning, cyclopentanone effectively removes oils, waxes, and flux residues. Its favorable properties, such as a low boiling point and excellent biodegradability, make it a preferred choice in electronic material production and metalworking.
Properties of Cyclopentanone
Produced through the dehydrogenation of cyclopentanol or ketonization of adipic acid, cyclopentanone is miscible with various organic solvents. Despite its utility, it’s used less frequently as a solvent compared to alternatives due to its flammability and specific handling requirements.
Other Information on Cyclopentanone
Hazards of Cyclopentanone
Classified under the GHS as a flammable liquid and an acute eye irritant, cyclopentanone requires careful handling and storage. Protective measures, including eyewear, lab coats, and gloves, are essential when working with this substance.