Produksi
Asam Asetat Dari Etanol Dengan Cara Elektrolisis
Abstract
Production
of acetic acid from ethanol by electrolysis (electrosynthesis)in alkaline
medium has been carried out using Ni, Cu and Pt electrodes.The electrochemical
behaviour study by cyclic voltammetry (CV) at Ni,
Cu
and Pt electrodes in electrolyte alkaline also had been done. In this work we investigate the
effects of electrod, electrolysis time and electrolyte concentration on the yields
of acetic acid and other product.
Electrooxidation
of 0.25 M ethanol in KOH (24 mL) done with Chronocoulometry (CC) at potential 1.050 V. From CC data shows
that the oxidation
potential of ethanol in KOH at 600 mV. From HPLC data,
Cu
electrod at concentration of KOH low (0.1 M) more effective to yield acetic acid compared to Ni
electrod, Ni electrod betters to yield acetic acid at concentration of KOH
1.0 M. Product electrooxidation of ethanol
besides
acetic acid is acetaldehyde and athyl acetate.
Key-words:
Ethanol, Acetic Acid, Electrolysis
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