Measurement of the solubility of the salt of 2-mercaptobenzothiazole with cyclohexylamine and tert-butylamine in various solvents at low temperatures: Models and thermodynamic parameters

Comments concerning “Measurement of the solubility of the salt of 2-mercaptobenzothiazole with cyclohexylamine and tert-butylamine in various solvents at low temperatures: Models and thermodynamic parameters”

“…I calculate ΔH for the dissolution of 2-MBT-CHA in MIBK (B = -4710.22 from Table 5 of published paper [1]) at the mean temperature of 325.65 K. The numerical value that I obtain is ΔH = 39,160.8 J mol -1 , which differs significantly from the value of ΔH = 22,981.15 J mol -1 that the authors report in Table 11. …”

“…In a recent article published in This Journal Wongkaew and coworkers [1] Table 4 for the modified Apelblat equation:…”

“…In the absence of melting point temperatures one cannot use the Buchowski- solubility that is given in Table 2 is  There are inconsistencies between the authors' calculated enthalpies of dissolution, ΔH, given in Table 11 of the published paper [1] and the numerical values of van't Hoff Bcoefficients. According to the written text the authors calculated the value of ΔH as:…”

Solutions of Urea in tert-Butylamine: The Phenomenon of “Partial Molar Isobaric Compaction of the Solute” According to Density Measurements between 278.15 and 303.15 K at Ambient Pressure

“…With that said, as well as the fact of rather low solubility of U in t-BuNH 2 , we performed a precision densimetric study of urea's high-dilute solutions in the alkylamine of interest to derive data on V̅ 2 ○ and E̅ p,2 ○ at ambient pressure. For this purpose, six temperatures between 278.15 and 303.15 K in 5 K increment were chosen, given the circumstance that the boiling point of the solvent is only about 318 K. 25…”