Potentiometric Determination of Copper with 2,5-Dimercapto-1,3,4-thiadiazole 


Vol. 20,  No. 4, pp. 277-279, Aug.  1976


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  Abstract

은 전극을 지시전극으로 하고 표준칼로멜 전극을 기준전극으로 하여 전압플로위회로를 이용하여 수용액에서 2,5-dimercapto-1,3,4-thiadiazole에 의한 구리의 전위차 적정법을 연구하였다. 이 시약은 구리의 전위차 적정 정량에 뛰어나게 이용할 수 있었고 여러가지 가리움제를 사용하여 다른 이온들의 존재하에 대기중에서 미량의 구리를 직접 적정할 수 있었다. A potentiometric titration method has been developed for the titration of copper with 2,5-dimercapo-1,3,4-thiadizole in aqueous solution using a silver electrode as an indicator electrode vs. the standard calomel electrode as a reference electrode. The 2,5-dimercapto-1,3,4-thiadiazole is very sensitive reagent for copper, which has been found to be highly selective for potentiometric determination of copper. Direct titration of trace amount of copper (0.02∼0.1 mg) is possible in the presence of a number of foreign ions in aqueous solution containing potassium hydrogen phthalate and sodium fluoride as masking agent under atmosphere.

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  Cite this article

[IEEE Style]

Y. G. Ha, "Potentiometric Determination of Copper with 2,5-Dimercapto-1,3,4-thiadiazole," Journal of the Korean Chemical Society, vol. 20, no. 4, pp. 277-279, 1976. DOI: .

[ACM Style]

Young Gu Ha. 1976. Potentiometric Determination of Copper with 2,5-Dimercapto-1,3,4-thiadiazole. Journal of the Korean Chemical Society, 20, 4, (1976), 277-279. DOI: .

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ISSN(Print) 1017-2548
ISSN(Online) 2234-8530