ozone
Sign in to saveOzone (), also called trioxygen, is an inorganic molecule with the chemical formula ''''''. It is a pale-blue gas with a distinctively pungent odour. It is an allotrope of oxygen that is much less stable than the diatomic allotrope , breaking down in the lower atmosphere to (dioxygen). Ozone is formed from dioxygen by the action of ultraviolet (UV) light and electrical discharges within the Earth's atmosphere. It is present in very low concentrations throughout the atmosphere, with its highest concentration high in the ozone layer of the stratosphere, which absorbs most of the Sun's ultraviole
AI overview
Ozone is a pale-blue, pungent-smelling gas made of three oxygen atoms that forms naturally in Earth's atmosphere when ultraviolet light and electrical discharges act on regular oxygen. It's particularly important because the ozone layer high in the atmosphere absorbs most of the Sun's ultraviolet radiation, protecting life on Earth.
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Article
56 sectionsContents
- Nomenclature
- History
- Physical properties
- Structure
- Reactions
- With metals
- With nitrogen and carbon compounds
- With sulphur compounds
- With alkenes and alkynes
- Other substrates
- Combustion
- Ozone decomposition
- Types of ozone decomposition
- Kinetics of ozone decomposition into molecular oxygen
- Reduction to ozonides
- Applications
- Spectroscopic properties
- Ozone in Earth's atmosphere
- Ozone layer
- Location and production
- Importance to surface-dwelling life on Earth
- Ground-level ozone
- Ground-level ozone in urban areas
- Ozone cracking
- Ozone as a greenhouse gas
- Carbon filtering
- Health effects
- Vulnerable populations
- Acute ozone exposure
- Chronic ozone exposure
- Ozone produced by air cleaners
- Ozone air pollution
- Heat waves
- Physiology
- Impact on plant growth and crop yields
- Safety regulations
- Production
- Corona discharge method
- Ultraviolet light
- Cold plasma
- Electrolytic
- Special considerations
- Incidental production
- Laboratory production
- Applications
- Industry
- Water disinfection
- Consumers
- Aquaculture
- Agriculture
- Effect on pollinators
- Alternative medicine
- See also
- References
- Further reading
- External links
Ozone (), also called trioxygen, is an inorganic molecule with the chemical formula ''''''. It is a pale-blue gas with a distinctively pungent odour. It is an allotrope of oxygen that is much less stable than the diatomic allotrope , breaking down in the lower atmosphere to (dioxygen). Ozone is formed from dioxygen by the action of ultraviolet (UV) light and electrical discharges within the Earth's atmosphere. It is present in very low concentrations throughout the atmosphere, with its highest concentration high in the ozone layer of the stratosphere, which absorbs most of the Sun's ultraviolet (UV) radiation.
Ozone's odour is reminiscent of chlorine, and detectable by many people at concentrations of as little as in air. Ozone's O3 structure was determined in 1865. The molecule was later proven to have a bent structure and to be weakly diamagnetic. At standard temperature and pressure, ozone is a pale blue gas that condenses at cryogenic temperatures to a dark blue liquid and finally a violet-black solid. Ozone's instability with regard to more common dioxygen is such that both concentrated gas and liquid ozone may decompose explosively at elevated temperatures, physical shock, or fast warming to the boiling point. It is therefore used commercially only in low concentrations.