Electro-deposition of manganese with selenious acid as an addition agent

Dhananjayan, N and Banerjee, T (1969) Electro-deposition of manganese with selenious acid as an addition agent. In: Structure of Electro-Deposited Manganese. CSIR -NML, Jamshedpur, pp. 133-159.



The results of experiments with selenious acid as an addition agent to study the influence of different cell variables on the current efficiency of deposition of manganese, hydrogen and selenium content of deposited manganese and consumption of electrical energy per kilo-gram of deposited metal have been presented. Current efficiencies of the order of 90 per cent, corresponding to an energy consumption of 5 kWh per kilogram of depo-sited manganese, can be obtained from electrolysis of 125-50 gm of manganese sulphate, 125-50 gm of ammonium sulphate and 0.1 gm of seleniors acid per litre of elec-trolyte in a double compartment cell between stainless steel cathodes and lead-silver anodes, with arrangement for flow of electrolyte, at a catholyte pH of 7.8, tem-perature of 28-30°C and at a cathodic current density of 4.8 amps/sq dm. Cell reactions leading to the precipitation of selenium in the cathode chamber has been discussed along with hydrogen content and stripping of deposited metal.

Item Type:Book or NML Publication
Official URL/DOI:http://eprints.nmlindia.org/5615
Uncontrolled Keywords:manganese; selenious acid; addition agent; hydrogen
Divisions:Metal Extraction and Forming
ID Code:5615
Deposited By:Sahu A K
Deposited On:26 Jun 2012 18:20
Last Modified:26 Jun 2012 18:20
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