Qhov sib txawv tseem ceeb ntawm complexometric thiab redox titrations yog tias complexometric titrations koom nrog tsim cov complex ion los ntawm ib tug yooj yim ion thiab ib tug xim hloov nyob rau hauv cov qauv tov ntawm qhov sib npaug point, whereas redox titrations koom nrog txo los yog oxidation ntawm. cov qauv tov ntawm qhov sib npaug point.
Muaj ntau qhov sib txawv ntawm complexometric thiab redox titrations; txoj kev ntawm titration, endpoint detection thiab daim ntawv thov yog ib co ntawm cov txheej txheem uas lawv sib txawv ntawm ib leeg.
Dab tsi yog qhov Complexometric Titration?
Complexometric titration yog hom txheej txheem titration uas tsim cov xim sib txawv tshwm sim uas yuav pab tau txiav txim siab qhov kawg ntawm titration. Nws yog ib hom kev ntsuas volumetric. Hom titration no yog qhov tseem ceeb tshwj xeeb hauv kev txiav txim siab sib xyaw ntawm cov hlau sib txawv hauv cov tshuaj vim tias cov hlau ions zoo li tsim cov complexes.
Daim duab 01: Complexometric Titration
Peb yuav tsum siv qhov taw qhia uas muaj peev xwm ua kom pom kev hloov xim hauv cov tshuaj. Cov kev cuam tshuam complexometric uas tshwm sim hauv cov titrations suav nrog kev hloov pauv ntawm ib qho yooj yim ion mus rau hauv ib qho nyuaj ion, thiab ib qho taw qhia hlau lossis electrometrical txoj kev kuj tseem siv tau los ua cov ntsuas. Feem ntau hom complexometric titrations yog EDTA titrations, uas koom nrog cov chelation ntawm hlau ions siv EDTA.
Thaum xav txog kev siv cov complexometric titrations, nws yog ib qho tseem ceeb rau kev kwv yees tus nqi ntawm hardness nyob rau hauv dej nyob rau hauv kev lag luam kws tshuaj los txiav txim cov hlau concentration ntawm cov tshuaj, nyob rau hauv kev txiav txim siab ntawm titanium dioxide cov ntsiab lus nyob rau hauv cov tshuaj pleev ib ce, thiab lwm yam..
Dab tsi yog Redox Titration?
Redox titrations yog ib hom txheej txheem titration uas muaj tus neeg sawv cev txo qis thiab tus neeg sawv cev oxidizing. Cov titration no feem ntau koom nrog qhov ntsuas redox lossis potentiometer. Ntxiv mus, muaj ntau hom redox titrations uas muaj npe raws li titrant siv hauv titration. Piv txwv xws li bromine (uas siv bromine li titrant), cerimetry (siv cerium (IV) ntsev raws li titrant), dichrometry (siv poov tshuaj dichromate li titrant), iodometry (siv iodine li titrant), thiab permanganometry (siv poov tshuaj permanganate). raws li tus titrant).
Rau qhov kev ntsuas ntawm redox titration, peb yuav tsum nkag siab cov duab ntawm titration nkhaus ntawm redox titration. Piv txwv li, nyob rau hauv acid-base titrations thiab complexometric titrations, titration nkhaus qhia tau hais tias qhov kev hloov ntawm hydronium ion concentration nyob rau hauv daim ntawv ntawm pH hloov los yog kev hloov ntawm ib tug tshwj xeeb ion thaum ntxiv cov titrant. Tab sis hauv redox titrations, peb yuav tsum tau saib xyuas lub peev xwm ntawm cov tshuaj tiv thaiv titration es tsis yog qhov concentration ntawm hom ionic.
Siv ib qho kev kwv yees kwv yees titration nkhaus, peb tuaj yeem txheeb xyuas qhov kev sib raug zoo ntawm qhov sib npaug thiab qhov kawg ntawm redox titration. Txawm li cas los xij, peb tuaj yeem tau txais qhov sib npaug yog tias peb hnov mob rau stoichiometrically sib npaug ntawm titrant thiab titrand. Tab sis muaj ntau txoj hauv kev rau kev txiav txim siab ntawm qhov kawg, piv txwv li. siv cov ntsuas lossis cov ntsuas ntsuas uas teb rau qhov kev hloov pauv ntawm cov xwm txheej ntawm cov qauv kev daws teeb meem. Txoj kev tseeb tshaj plaws ntawm kev nrhiav qhov kawg ntawm redox titration yog potentiometric titration, qhov uas peb tuaj yeem saib xyuas qhov kev hloov pauv ntawm qhov muaj peev xwm ntawm qhov sib ntxiv ntawm titrant rau titrand. Nyob ntawd, peb tuaj yeem pom qhov kawg ntawm qhov titration nkhaus.
Dab tsi yog qhov txawv ntawm Complexometric thiab Redox Titration?
Qhov sib txawv tseem ceeb ntawm complexometric thiab redox titrations yog tias complexometric titrations koom nrog tsim cov complex ion los ntawm ib tug yooj yim ion thiab ib tug xim hloov nyob rau hauv cov qauv tov ntawm qhov sib npaug point, whereas redox titrations koom nrog txo los yog oxidation ntawm. cov qauv kev daws teeb meem ntawm qhov sib npaug. Muaj ob peb lwm qhov sib txawv ntawm complexometric thiab redox titrations raws li cov txheej txheem xws li txoj kev titration, endpoint detection thiab applications.
Cov lus hauv qab no nthuav tawm qhov sib txawv ntawm complexometric thiab redox titrations nyob rau hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Complexometric vs Redox Titration
Qhov sib txawv tseem ceeb ntawm complexometric thiab redox titrations yog tias complexometric titrations koom nrog tsim cov complex ion los ntawm ib tug yooj yim ion thiab ib tug xim hloov nyob rau hauv cov qauv tov ntawm qhov sib npaug point, whereas redox titrations koom nrog txo los yog oxidation ntawm. cov qauv tov ntawm qhov sib npaug point.
