Spectrophotometric Determination of Acidic Strength of Some Acids in Acetic Acid Medium 


Vol. 31,  No. 5, pp. 452-456, Oct.  1987


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  Abstract

benzenesulfonic acid (HBs)와 그 유도체인 p-chlorobenzenesulfonic acid(HCs)의 세기를 아세트산 용매에서 분광광도법으로 측정하였다. Indicator Base인 HTs, HBs, HCs 및 HNs의 이온화상수는 각각 3.5 × 102, 4.1 × 102, 19.3 × 102 , 50 × 102 이었다. Acidic strength of benzenesulfonic acid (HBs) and it's derivatives, p-toluenesulfonic acid(HTs), p-chlorobenzenesulfonic acid(HCs) and m-nitrobenzenesulfonic acid(HNs), were measured in the anhydrous acetic acid medium by spectrophotometry. p-naphtholbenzein (PNB) was used as an indicator base and the ionization constants of HTs, HBs, HCs and HNs were 3.5 × 102, 4.1 × 102, 19.3 × 102 and 50 × 102, respectively, at 20.0±0.1℃.

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  Cite this article

[IEEE Style]

K. Cha, S. Hong, C. Yang, I. Lee, "Spectrophotometric Determination of Acidic Strength of Some Acids in Acetic Acid Medium," Journal of the Korean Chemical Society, vol. 31, no. 5, pp. 452-456, 1987. DOI: .

[ACM Style]

Ki-Won Cha, Sung-Wook Hong, Chang-Suk Yang, and Ikchoon Lee. 1987. Spectrophotometric Determination of Acidic Strength of Some Acids in Acetic Acid Medium. Journal of the Korean Chemical Society, 31, 5, (1987), 452-456. DOI: .

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