Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

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Original Articles: 2017 Vol: 9 Issue: 7

Electrochemical Studies of Zn-Mn Alloy Plating from Acid Sulphate Bath using Condensation Product 4-Chloro-2-Nitro-N-Phenyl Methylidene Aniline using as a Brightener


Zn-Mn alloy coatings were deposited on mild steel substrate using acidic sulphate bath at room temperature. Electrodeposition of Zn-Mn alloys of different composition, morphology and structure depending on the cathodic potential was found. The alloy electrodeposition from sulphate bath was carriedout in presence of condensation product formed between 4-chloro-2-nitro aniline and salicylaldehyde. The bath constituents were optimized through Hull-cell experiments. Operating parameters such as pH, temperature and current density were also optimized. Current efficiency and throwing power were measured. Polarisation study is carriedout under galvostatic condition. SEM photomicrographs showed fine-grained deposit in the presence of condensation product. IR spectrum of the deposit showed inclusion of condensation product in the deposit during plating. Their structure and morphology were characterized by X-ray diffraction (XRD).

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