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These diaphragms have very high porosity (60-70%) with submicron pore sizes resulting in low electrical resistance in electrolyte solutions and are stable up to 30% H2SO4 solution. The production cost of these diaphragms is lower by an order of magnitude compared to presently used Nafion membranes with comparable properties. These diaphragms can be used as a separator in electrolytic cell for production of various chemicals such as ammonium per sulphate (NH4)2S2O8 by electrochemical process in acidic medium.
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