Cyclopentanone (CAS 120-92-3) is a fundamental cyclic ketone with a distinct set of chemical and physical properties that make it a valuable intermediate across several industrial sectors. For chemical engineers, R&D scientists, and procurement professionals, a thorough understanding of its characteristics, production methods, and handling is crucial. Sourcing high-purity Cyclopentanone from reputable cyclopentanone suppliers in China ensures access to a reliable and well-characterized raw material.

Physically, Cyclopentanone presents as a clear, colorless to slightly yellow liquid. Its molecular formula is C5H8O, and it possesses a characteristic pleasant, slightly minty odor. The compound is known for its reactivity, particularly its tendency to polymerize in the presence of acids. Key physical properties include a boiling point of approximately 130-131 °C and a flash point of around 30 °C (87 °F), classifying it as a flammable liquid. Its solubility profile shows it is practically insoluble in water but miscible with common organic solvents like alcohol and ether.

The primary production method for Cyclopentanone involves the heating of adipic acid in the presence of a catalyst, such as barium hydroxide, at elevated temperatures (typically 285–295 °C). This process, known as ketonization, yields Cyclopentanone which is then purified through distillation. Other methods include the oxidation of cyclopentanol. The meticulous purification steps, often involving fractional distillation, are critical for achieving the high purity levels, such as ≥99.5% Cyclopentanone, required for sensitive applications in fragrances and pharmaceuticals.

Safety considerations are paramount when handling Cyclopentanone. Due to its flammability, it must be stored away from heat, sparks, and open flames, and kept separate from strong oxidizing agents and acids. Inhalation of vapors at high concentrations can lead to dizziness or suffocation, and contact may cause irritation to skin and eyes. Therefore, appropriate personal protective equipment (PPE) and well-ventilated working environments are essential for safe handling. Procurement teams looking to buy Cyclopentanone CAS 120-92-3 should always request and review the Safety Data Sheet (SDS) provided by the cyclopentanone manufacturer.

In essence, Cyclopentanone is a compound defined by its valuable chemical reactivity, desirable sensory properties, and specific synthesis pathways. Understanding these aspects empowers industry professionals to effectively utilize this intermediate. For businesses seeking cost-effective and high-quality Cyclopentanone, engaging with experienced cyclopentanone suppliers in China offers a strategic advantage for consistent procurement and application success.