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

Journal of the Korean Chemical Society

Ki-Won Cha¹  Sung-Wook Hong¹  Ikchoon Lee¹  Chang-Suk Yang¹ 

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

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¡¾0.1¡É.

【 授权许可】

Unknown