Redox indicator Ntau diphenylamine derivatives yog siv los ua redox indicators, As tshwj xeeb tshaj yog nyob rau hauv alkaline redox titrations. … Hauv daim ntawv thov cuam tshuam, diphenylamine yog oxidized los ntawm nitrate kom muab cov xim xiav zoo sib xwshauv kev sim diphenylamine rau nitrates.
Yuav ua li cas diphenylamine ua qhov ntsuas sab hauv?
Diphenylamne yog siv los ua qhov taw qhia vim tias nws qhia meej meej xim hloov ntawm ntsuab mus rau violet thaum kawg taw tes ntawm titration mus txog. Feem ntau phosphoric acid yog ntxiv rau Fe2 + tov yog tias qhov no yog qhov reductant uas tau titrated, kom cov khoom Fe3+ yuav ruaj khov.
Dab tsi yog siv diphenylamine reagent?
Diphenylamine yog ib qho tshuaj tsw qab amine uas muaj ob lub phenyl hloov pauv. Nws tau raug siv los ua tshuaj tua kab mob rau kev kho mob ntawm daim tawv nqaij tawv nqaij hauv cov txiv apples thiab pears, tab sis tsis tau pom zoo rau lub hom phiaj no hauv European Union. Nws muaj lub luag haujlwm ua carotogenesis inhibitor, antioxidant, EC 1.3.
Dab tsi yog cov tshuaj formula ntawm diphenylamine ntsuas nws ua haujlwm li cas?
Diphenylamine yog cov organic compound nrog cov mis (C6H5)2NH. Lub compound yog ib tug derivative ntawm aniline, muaj ib tug amine khi rau ob pawg phenyl. Cov khoom sib xyaw yog cov khoom tsis muaj xim, tab sis cov qauv kev lag luam feem ntau yog daj vim oxidized impurities.
yog dab tsimuaj pes tsawg leeg ntawm diphenylamine reagent ?
Cov reagent yog cov tshuaj ntawm 0.5% diphenylamine hauv 90% sulfuric acid. Txhawm rau npaj cov reagent, maj mam ntxiv 90 mL ntawm cov concentrated sulfuric acid rau 10 mL dej thaum nplawm tas li, thiab tom qab ntawd ntxiv qhov no, hauv cov ntu me me, mus rau 0.5 g ntawm diphylamine.
