Determination of the pK Values of Some Weak Acids in Liquid Ammonia
- 1 January 1969
- journal article
- research article
- Published by Taylor & Francis in Analytical Letters
- Vol. 2 (1) , 35-39
- https://doi.org/10.1080/00032716908051269
Abstract
The pK values of some weak acids were measured using the hydrogen electrode in liquid ammonia containing 0.1M potassium iodide supporting electrolyte at −60°C. The results showed that acetone (pK = 22.5), aniline (pK = 28.8), and 4-chloroaniline (pK = 27.4) were weaker acids than water (pK = 18.9), while thiophenol, diphenyl thiourea, thiocarbohydrazide (pK1 = 4.7; pK2 = 8.5), thiosinamine (pK = 6.6), diphenylurea (pK = 7.0), diphenylsemicarbazide (pK = 7.6), diphenylguanidine (pK = 10.7), and diphenylcarbazone (9.5<pK<11) were stronger than water.Keywords
This publication has 1 reference indexed in Scilit:
- A Nuclear Magnetic Resonance Method for the Determination of Relative Acidities of Weak Acids in Liquid AmmoniaJournal of the American Chemical Society, 1966