Electrogravimetric analysis:

We have learnt the principle of electrogravimetric analysis.  Here the analyte was deposited quantitatively through an electrolytic reaction and weighed alter of chemically precipitated from a solution.  Therefore the name electrogravimetry.   We have elaborates the meaning of ohmic potential (IR drop) and polarisation in an electrolytic cell. The degree of polarisation is provided through overvoltage or overpotential.   We have also learnt about the two categories of polarisation-concentration polarisation and kinetic polarisation and their role within electrodeposition. We then define about the two categories of electrogravimetric methods - constant current electrolysis and controlled cathode potential electrolysis.  The principle, instrumentation, type of cells, and applications were defined.  The physical features of metal deposits and the importance of a depolariser were described. An importance of controlled cathode potential within the successive deposition of metal ions was elaborates in detail at the end.