Partial molar volumes of organic solutes in water. VII. - and -Aminobenzoic acids at = 298 K to 498 K and -diaminobenzene at= 298 K to 573 K and pressures up to 30 MPa

Partial molar volumes of organic solutes in water. XII. Methanol(aq), ethanol(aq), 1-propanol(aq), and 2-propanol(aq) at T= (298 to 573) K and at pressures up to 30 MPa

“…Data for solutes of the aromatic series (benzene and its mono-and di-substituted derivatives) have been already published [1][2][3][4][5][6][7][8][9][10][11]. Recently data for phenylmethanol and 2-phenylethanol, the solutes that are intermediate between aromatic and aliphatic series, have been published [12].…”

Heat capacities of aqueous polar aromatic compounds over a wide range of conditions. Part II: dihydroxybenzenes, aminophenols, diaminobenzenes

“…The rapid decomposition was observed for all aqueous aminophenols and diaminobenzenes (solutions changing colour after a week or so), therefore the solutions were newly prepared before each set of measurements at one temperature and pressure. The solution of p-diaminobenzene was particularly unstable at elevated temperatures and was not therefore investigated above 373 K. It was found already during the volumetric measurements [16,17] that aqueous maminophenol and o-diaminobenzene have higher temperature stability than other solutes which allowed their investigation up to 573 K. In the cases of o-aminophenol and p-aminophenol the low solubility in water did not allow performing measurements at more than one concentration.…”

“…The ratio of densities of water and solution (q 1 /q s ) SL relates to conditions of the sample loop, maintained at temperature of 298 K and the pressure of the experiment. The necessary values were found in the literature for solutions of dihydroxybenzenes [13], m-aminophenol [17] and o-diaminobenzene [16] and resulted from unpublished measurements of Hnědkovský for solutions of the three remaining compounds. The density of water was calculated from the Hill equation [21].…”

“…In this communication additional experimental data are presented for eight solutes containing two polar groups: o-, m-, p-dihydroxybenzenes, o-, m-, p-aminophenols and o-, p-diaminobenzenes (phenylendiamines). This research was performed in correspondence with the investigation of volumetric properties for phenol [11], cresols [12], dihydroxybenzenes [13], aniline [14], toluidines [15], o-diaminobenzene [16] and m-aminophenol [17] at the Institute of Chemical Technology Prague.…”

Standard partial molal properties of aqueous alkylphenols and alkylanilines over a wide range of temperatures and pressures

“…(9)). The bulk of high-temperature data are the measurements up to 573 K from the Prague Institute of Chemical Technology (Hynek et al, 1997;Hnedkovsky et al, 1998;Jedelsky et al, 1999;Ruzicka et al, 2000a,b;Hyncica et al, 2002;Striteska et al, 2003). The only measurements performed above 573 K are those of Criss and Wood (1996) for phenol and the new results presented above for phenol and cresols.…”