Permanganometry

Permanganometry is one of the techniques used in chemical quantitative analysis. It is a redox titration that involves the use of permanganates to measure the amount of analyte present in unknown chemical samples. It involves two steps, namely the titration of the analyte with potassium permanganate solution and then the standardization of potassium permanganate solution with standard sodium oxalate solution. The titration involves volumetric manipulations to prepare the analyte solutions. Permanganometry allows the detection and estimation of the quantitative presence of various chemical species, such as iron(II), manganese(II), oxalate, nitrite, and hydrogen peroxide.

Permanganometry is one of the techniques used in chemical quantitative analysis. It is a redox titration that involves the use of permanganates to measure the amount of analyte present in unknown chemical samples. It involves two steps, namely the titration of the analyte with potassium permanganate solution and then the standardization of potassium permanganate solution with standard sodium oxalate solution. The titration involves volumetric manipulations to prepare the analyte solutions. Permanganometry allows the detection and estimation of the quantitative presence of various chemical species, such as iron(II), manganese(II), oxalate, nitrite, and hydrogen peroxide. ; E = +1.51 V which shows that (in an acidic medium) is a very strong oxidizing agent, able to oxidize (E = +0.77 V), (E = +0.2 V), and even (E = +1.36 V). In weak acidic medium can not accept 5 electrons to form . Instead, it accepts only 3 electrons and forms solid by the following reaction: ; E = +1.69 V In a strongly basic solution, with the concentration c(NaOH) > 1 mol dm −3 , only one electron is accepted to produce manganate: ; E = +0.56 V ==References==

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