hydroxyl radical

hydroxyl radical

OH, a molecule with an unpaired electron consisting of one hydrogen atom and one oxygen atom. This radical readily reacts with methane and other hydrocarbons in the atmosphere and can begin the process by which tropospheric oxygen is incorporated in a mechanism for the oxidation of NO to NO₂. Photolysis of NO₂ yields atomic O and quickly ozone at tropospheric pressures. In urban environments this is a major source of ozone:

OH + CH₃CH₃ ----> CH₃CH₂^.+ H₂O

O₂ + CH₃CH₂^. ----> CH₃CH₂O₂^.

NO + CH₃CH₂O₂^. ----> CH₃CH₂O^.+ NO₂

NO₂ + hv ----> NO + O

O₂ + O + M ----> O₃ + M

The source of the hydroxyl radical in the atmosphere occurs primarily through the 1) photolysis of hydrogen peroxide, heat, and light and 2) the attack on water of an excited oxygen radical (created by the photolysis of ozone).

0 0

Improve it

Add an image

Part of Speech: noun
Synonym(s):
Blossary:
Industry/Domain: Chemistry; Weather
Category: Atmospheric chemistry
Educational Institution: Sam Houston State University
Product:
Acronym-Abbreviation:

Collect to Blossary

Other Languages:

Terms in the News

Billy Morgan

Sports; Snowboarding

The British snowboarder Billy Morgan has landed the sport’s first ever 1800 quadruple cork. The rider, who represented Great Britain in the 2014 Winter Olympics in Sochi, was in Livigno, Italy, when he achieved the man-oeuvre. It involves flipping four times, while body also spins with five complete rotations on a sideways or downward-facing axis. The trick ...

Marzieh Afkham

Broadcasting & receiving; News

Marzieh Afkham, who is the country’s first foreign ministry spokeswoman, will head a mission in east Asia, the state news agency reported. It is not clear to which country she will be posted as her appointment has yet to be announced officially. Afkham will only be the second female ambassador Iran has had. Under the last shah’s rule, Mehrangiz Dolatshahi, a ...

Weekly Packet

Language; Online services; Slang; Internet

Weekly Packet or "Paquete Semanal" as it is known in Cuba is a term used by Cubans to describe the information that is gathered from the internet outside of Cuba and saved onto hard drives to be transported into Cuba itself. Weekly Packets are then sold to Cuban's without internet access, allowing them to obtain information just days - and sometimes hours - after it ...

Asian Infrastructure Investment Bank (AIIB)

Banking; Investment banking

The Asian Infrastructure Investment Bank (AIIB) is an international financial institution established to address the need in Asia for infrastructure development. According to the Asian Development Bank, Asia needs $800 billion each year for roads, ports, power plants or other infrastructure projects before 2020. Originally proposed by China in 2013, a signing ...

Spartan

Online services; Internet

Spartan is the codename given to the new Microsoft Windows 10 browser that will replace Microsoft Windows Internet Explorer. The new browser will be built from the ground up and disregard any code from the IE platform. It has a new rendering engine that is built to be compatible with how the web is written today. The name Spartan is named after the ...

Featured Terms

Dscott

0
Terms
0
Blossaries
4
Followers

Industry/Domain: Animals Category: Mammals

woolly mammoth

The woolly mammoth (Mammuthus primigenius) is an extinct species of mammoth, a genus in the elephant family. They are thought to have died out around ...