전위차 적정법을 이용한 이온교환수지의 특성 계산

김태일; 황택성; 손원근; 최돈묵; 오인석; T. I. Kim; T. S. Hwang; W. K. Son; D. M. Choi; I. S. Oh; B. C. Soldatov

Polymer(Korea), Vol.23, No.5, 747-754, September, 1999

Export Citation

전위차 적정법을 이용한 이온교환수지의 특성 계산

The Properties Computation of Ion Exchanger Using the Potentiometric Titration

김태일^†, 황택성 , 손원근, 최돈묵¹, 오인석²,

충남대학교 화학공학부
¹경원전문대학 소방안전과
²청양대학 소방안전과

T. I. Kim^†, T. S. Hwang , W. K. Son, D. M. Choi¹, I. S. Oh², and B. C. Soldatov³

School of Chemical Eng., College of Eng., Chungnam National Univ., Daejeon 305-764, Korea
¹Department of Fire Safety Eng., Kyungwon College, Songnam 461-702, Korea
²Department of Fire Safety Eng., Chongyang College, Chongyang 345-800, Korea
³Institute of Physicoorganic Chemistry, Belarussian National Academy of Science, Minsk, Belarus

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초록

이온교환수지/용액 계에서 이온교환수지의 산성 매개변수인 열역학상수 ÞK⁰, 외형평형상수 및 외형평형상수의 보정값 (b) 등 전위차 적정곡선에 영햐을 주는 주된 특성들의 계산 방법을 연구하였다. 이론 식을 검증하기 위해 구형과 섬유형의 카르복실형 양이온교환수지를 이용하여지지 전해질의 농도에 따라 실험을 행한 후 전위차 적정곡선을 구하였고, 이들의 결과로부터 이온교환수지계의 산성도 매개변수와 관련된 특성식을 얻었으며, 용액의 pH,지지 전해질의 농도 (C) 및 이온교환수지의 중화도 (χ)를 간편하게 구할 수 있다.

This was studied on a method for computation of the main characteristics having an effect on potentiometric titration curve in ion exchanger/solution system. These characteristics are the acidity parameters of ion exchangers such as thermodynamic constant(pK^°, apparent equilibrium constant and correction for the apparent equilibrium constant(ba0. For proving the theory, we carried out an experiment on potentiometric titration by using the carboxylic cation exchangers of granular and fibrous type and obtained potentiometric titration curves at different concentrations of the supporting electrolyte. AS a result, we obtained a characteristic equation related with the acidity parameters of ion exchangers systems. The characteristics such as solution pH, supporting electrolyte concentration(C) and degree of neutralization of ion exchanger(x) could simply calculated based on this equation.

Keywords:ion exchage;carboxylic ion exchanger;potentiometric titration;equilibrium constant

[References]

Helfferich F, "Ion Exchanger," ed. by J.A. Marinsky, vol. 1, p. 81, McGraw-Hill Book Co, New York (1960)
Kern WZ, Biochem. Z., 301, 338 (1939)
Gustafson L, Fillius HF, Kunin R, Ind. Eng. Chem. Fundam., 9, 221 (1970)
Kunin R, Fisher S, J. Phys. Chem., 66, 2275 (1962)
Soldatov VS, J. Phys. Chem., 42, 2287 (1968)
Soldatov VS, "Simple Ion Exchange Equilibria," ed. by H.B. Malaxova, p. 162, Nauka I Technika, Minsk (1972)
Katchalsky A, Spitnik P, J. Polym. Sci., 4, 432 (1947)
Gregor HP, Hamilton MJ, Becher J, Bernstein F, J. Chem. Soc., 59, 874 (1955)
Soldatov VS, Dokl. Akad. Nauk, 314, 664 (1990)
Soldatov VS, React. Polym., 19, 105 (1993)
Soldatov VS, Ind. Eng. Chem. Res., 34(8), 2605 (1995)
Soldatov VS, Sosinivich ZI, Kim TI, J. Phys. Chem. Russia, 70(7), 1332 (1996)
Soldatov VS, Sosinivich ZI, Kim TI, J. Phys. Chem. Russia, 70, 1503 (1996)
Soldatov VS, Dokl. Akad. Nauk Belarus, 39, 48 (1995)
Soldatov VS, Dokl. Akad. Nauk Russia, 343, 350 (1995)

[Referenced By]

[Related Articles]

[1] Helfferich F, "Ion Exchanger," ed. by J.A. Marinsky, vol. 1, p. 81, McGraw-Hill Book Co, New York (1960)

[2] Kern WZ, Biochem. Z., 301, 338 (1939)

[3] Gustafson L, Fillius HF, Kunin R, Ind. Eng. Chem. Fundam., 9, 221 (1970)

[4] Kunin R, Fisher S, J. Phys. Chem., 66, 2275 (1962)

[5] Soldatov VS, J. Phys. Chem., 42, 2287 (1968)

[6] Soldatov VS, "Simple Ion Exchange Equilibria," ed. by H.B. Malaxova, p. 162, Nauka I Technika, Minsk (1972)

[7] Katchalsky A, Spitnik P, J. Polym. Sci., 4, 432 (1947)

[8] Gregor HP, Hamilton MJ, Becher J, Bernstein F, J. Chem. Soc., 59, 874 (1955)

[9] Soldatov VS, Dokl. Akad. Nauk, 314, 664 (1990)

[10] Soldatov VS, React. Polym., 19, 105 (1993)

[11] Soldatov VS, Ind. Eng. Chem. Res., 34(8), 2605 (1995)

[12] Soldatov VS, Sosinivich ZI, Kim TI, J. Phys. Chem. Russia, 70(7), 1332 (1996)

[13] Soldatov VS, Sosinivich ZI, Kim TI, J. Phys. Chem. Russia, 70, 1503 (1996)

[14] Soldatov VS, Dokl. Akad. Nauk Belarus, 39, 48 (1995)

[15] Soldatov VS, Dokl. Akad. Nauk Russia, 343, 350 (1995)