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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 25, Number 4
JKCSEZ 25(4)
August 20, 1981

Title	A Study on the Silver Iodide Membrane Electrode (AgI / PVC·THF) (Ⅱ). Potentiometric Titration Error of Halide Mixture 요오드화은막전극 (AgI / PVC·THF) 에 관한 연구 (제2보). 할로겐화 이온혼합물의 전위차법 적정오차에 관한 연구
Author	Kee-Chae Park, Young-Soon Kwon 박기채, 권영순
Keywords
Abstract	AgI/PVC·THF막전극은 단일할로겐화이온과 할로겐화이온 혼합물을 질산은표준용액으로 전위차법적정할 때 지시전극으로 사용될 수 있다. 그러나 할로겐화이온혼합물을 단계적정할 때 오차가 매우 큼을 알 수 있었다. 그러나 적정용액에 NaNO3나 Ba(NO3)2같은 뭉침제를 가하면 오차가 매우 감소한다. 또한 젤라틴과 거름종이의 효과 그리고 온도의 영향도 조사하였다. The AgI/ PV·THF membrane electrode could be used as an indicator electrode in the potentiometric titration of single halide and mixture halide solutions with the standard solution of silver nitrate. The errors in the stepwise titrations of mixture halide solutions were considerably large, but by addition of flocculating agent, such as NaNO3 or Ba(NO3)2, in the sample solution, the errors were greatly reduced. Also, the effects of gelatin, filter paper and temperature on the titration errors were examined.
Page	253 - 262
Full Text	PDF

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