Electrogravimetric Analysis:

Electrogravimetric analysis is more or less similar to conventional gravimetric analysis. Thus in electrogravimetry the product is deposited quantitatively on an electrode by an electrolytic reaction and the amount of the product is determined by weighing the electrode before and after electrolysis. A material is deposited on an electrode through the application of a potential alter of chemical precipitation from a solution. Therefore the name electrogravimetry (weighing of the product after electrolysis).

Before learning the principle of this analysis, let us know some a few terms used.  From potentiometric studies, now we know what is a cell?  Generally a cell consists of two electrodes immersed in an electrolyte.  There are two kinds of cells - a galvanic cell and an electrolytic cell. A galvanic or voltaic cell is a device that converts chemical energy within electrical energy.  The galvanic cell commonly consists by two electrolytic solutions in that two electrodes of various materials are dipped in it. A Daniel cell is an instance of a galvanic cell.