At what voltage does ozone corona occur?

Ozone corona typically occurs at a voltage of around 2400 volts. At this voltage level, the electric field is strong enough to ionize the air, leading to the formation of ozone. Ozone is produced when oxygen molecules (O2) are split into individual atoms by the high-energy conditions created by the electric field. These single oxygen atoms then recombine with other oxygen molecules to form ozone (O3).

Understanding the formation of ozone at this voltage helps in comprehending its applications in various technologies, such as in ozone generators or certain types of electric discharge systems. By recognizing that the 2400-volt threshold is crucial for ozone generation, one can appreciate its importance in fields like water purification, air treatment, and industrial processes.