peroxy वाक्य
उदाहरण वाक्य
मोबाइल
- They are nitrates produced in the thermal equilibrium between organic peroxy VOCs ), or by aldehydes and other oxygenated VOCs oxidizing in the presence of NO 2.
- After the oxidation, which is normally done with a peroxy acid, halogenation is done under basic conditions by use of dibromodifluoromethane for the halogen transfer step.
- Peroxy radicals then go on to react with NO to give NO 2 which is photolysed to give atomic oxygen and through reaction with oxygen a molecule of ozone:
- The reaction of hydrogen peroxide with aqueous titanium ( IV ) gives a brightly colored peroxy complex that is a useful test for titanium as well as hydrogen peroxide.
- This cycle involving HO x and NO x is terminated by the reaction of OH with NO 2 to form nitric acid or by the reaction of peroxy radicals with each other to form peroxides.
- Human ALOX15 can also convert the peroxy PUFA intermediate to a cyclic ether with a three-atom ring, i . e . an epoxide intermediate that is attacked by a water molecule to form epoxy-hydrpoxy PUFA products.
- The atmospheric lifetime of tropospheric ozone is about 22 days; its main removal mechanisms are being deposited to the ground, the above-mentioned reaction giving HO ", and by reactions with OH and the peroxy radical HO 2 ".
- However, the presence of energetic free radicals during decomposition, particularly in hot gases or mists, can cause auto-ignition to occur at a lower temperature than would otherwise be normal for a similar chemical structure without the peroxy functional group.
- Hydrogen-donating antioxidants ( AH ), such as hindered phenols and secondary aromatic amines, inhibit oxidation by competing with organic substrate ( RH ) for peroxy radicals, thereby terminating the chain reaction and stabilizing the further oxidation reactions [ 1 ].
- In vivo, PD1 is mainly produced as a response to inflammatory signals and it is found in various tissues, such as the substrate ( DHA ) leads to the formation of the ( 17 " S " )-hydro ( peroxy )-DHA intermediate.
- ""'meta "-Chloroperoxybenzoic acid "'( "'mCPBA "') is a peroxycarboxylic acid used widely as an oxidant in organic synthesis . mCPBA is often preferred to other peroxy acids because of its relative ease of handling.
- In PUFAs that do not have a third carbon-carbon double bound between their ?-13 and ?-12 carbons, human ALOX15 forms ?-6 peroxy intermediates; in PUFAs that do have this third double bound, human ALOX15 makes the ?-6 peroxy intermediate but also small amounts of the ?-9 peroxy intermediate.
- In PUFAs that do not have a third carbon-carbon double bound between their ?-13 and ?-12 carbons, human ALOX15 forms ?-6 peroxy intermediates; in PUFAs that do have this third double bound, human ALOX15 makes the ?-6 peroxy intermediate but also small amounts of the ?-9 peroxy intermediate.
- In PUFAs that do not have a third carbon-carbon double bound between their ?-13 and ?-12 carbons, human ALOX15 forms ?-6 peroxy intermediates; in PUFAs that do have this third double bound, human ALOX15 makes the ?-6 peroxy intermediate but also small amounts of the ?-9 peroxy intermediate.
- The high reactivity of trifluoroperacetic acid relative to other peroxy acids allows it to successfully oxidize relatively electron-poor alkenes such as 1-hexene and vicinal hydroxy trifluoroacetate structure instead of an epoxide, which can be converted to the diol by treatment with acidic methanol, such as in the following conversion of 1-dodecene to 1, 2-dodecanediol.
- The propagation of thermal degradation can involve a variety of reactions and one of these is where the free radical ( R " ) reacts with an oxygen ( O 2 ) molecule to form a peroxy radical ( ROO " ) which can then remove a hydrogen atom from another polymer chain to form a hydroperoxide ( ROOH ) and so regenerate the free radical ( R " ).
- Matrix defects can also be present; oxygen vacancies, silicon vacancies ( usually compensated by 4 hydrogens or 3 hydrogens and a hole ), peroxy groups, etc . Some of the defects produce localized levels in the forbidden band, serving as charge traps; Al ( III ) and B ( III ) typically serve as hole traps while electron vacancies, titanium, germanium, and phosphorus atoms serve as electron traps.
- They commonly catalyze the attachment of molecular oxygen as a peroxy residue to polyunsaturated fatty acids ( PUFA ) that contain two carbon-carbon double bonds that for the human ALOX15 are located between carbons 10 and 9 and 7 and 6 as numbered counting backward from the last or omega ( i . e . ? ) carbon at the methyl end of the PUFA ( these carbons are also termed ?-10 and ?-9 and ?-7 and ?-6 ).
- अधिक वाक्य: 1 2
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