Search results
Results from the WOW.Com Content Network
Hydrogen peroxide is a chemical compound with the formula H 2 O 2.In its pure form, it is a very pale blue [5] liquid that is slightly more viscous than water.It is used as an oxidizer, bleaching agent, and antiseptic, usually as a dilute solution (3%–6% by weight) in water for consumer use and in higher concentrations for industrial use.
The peroxide group is marked in blue. R, R 1 and R 2 mark hydrocarbon moieties. The most common peroxide is hydrogen peroxide (H 2 O 2), colloquially known simply as "peroxide". It is marketed as solutions in water at various concentrations. Many organic peroxides are known as well. In addition to hydrogen peroxide, some other major classes of ...
Hydrogen peroxide is not nearly as reactive as these species, but is readily activated and is thus included. [3] Peroxynitrite and nitric oxide are reactive oxygen-containing species as well. Hydroxyl radical (HO·) is generated by Fenton reaction of hydrogen peroxide with ferrous compounds and related reducing agents:
Hydrogen peroxide. Catalase is used in the food industry for removing hydrogen peroxide from milk prior to cheese production. [43] Another use is in food wrappers, where it prevents food from oxidizing. [44] Catalase is also used in the textile industry, removing hydrogen peroxide from fabrics to make sure the material is peroxide-free. [45]
Hydrogen peroxide exposure may also result in hypersensitive response, which is the death of a small number of host cells at the site of infection, for the purpose of limiting pathogenic infection. [30] [31] ROS production in plants can be used as a readout for successful pathogen recognition via a luminol-peroxidase based assay. [32]
When the hydrogen peroxide is dripped on to the guaiac paper, it oxidizes the alpha-guaiaconic acid to a blue colored quinone. [11] [12] Normally, when no blood and no peroxidases or catalases from vegetables are present, this oxidation occurs very slowly. Heme, a component of hemoglobin found in blood, catalyzes this reaction, giving a result ...
That day, in August 2013, Patrick got in the car and put the duffel bag on a seat. Inside was a talisman he’d been given by the treatment facility: a hardcover fourth edition of the Alcoholics Anonymous bible known as “The Big Book.”
Frequently, molecular oxygen serves as a co-substrate, from which hydrogen peroxide (H 2 O 2) is then formed. Peroxisomes owe their name to hydrogen peroxide generating and scavenging activities. They perform key roles in lipid metabolism and the reduction of reactive oxygen species. [4]