Sabarathinam, R.M. and Vijayavalli, R. (1986) Potentiometric determination of cyanide in effluents having high concentration of chloride. Bulletin of Electrochemistry , 2 (2). pp. 207-208. ISSN 0256-1654

PDF - Published Version
Download (111Kb) | Preview


The est~mat~oofn c yanide IS generally done by titrimetry, colorimetry and polarography but each method has its own limitations. Argenlometric titration method IS not satisfactory at low cyanide concentralion at ppm levels. Distillation and colorimetry method is accurate but time consuming. Presence of large quant~t~eosf chloride does not permit the use of ion selective electrodes. Other methods available are Double Pulse Polarography and Atomic Absorption Spectroscopy. They involve sophisticated costly ~nstrumentsa nd are d~tt~cualst tar as small scale industries are concerned. It has been observed that potentiometric t~trationm ethod can be more easily adopted wlth falr accuracy even at ppm levels. The most Important advantage is that the estimations can be done at fast rate and does not require much of sophsticated ~nslrumentso r techn~que.S eries of experiments were carried out with varying cyanide concentrat~ons and large excess of chloride ions. Detection limit by this method is 100 ppb and the results agree well w~thth ose obtamed by the other methods. The results on actual samples and standards are presenled In thls paper.

Item Type: Article
Uncontrolled Keywords: Potentiornetry; cyanide; effluent treatment
Subjects: Electroorganic
Depositing User: ttbdar CECRI
Date Deposited: 23 Mar 2012 13:36
Last Modified: 23 Mar 2012 13:36

Actions (login required)

View Item View Item