The sublimation enthalpy of corannulene g cr H m (298.15 K) has been measured by head space analysis and by combining the fusion and vaporization enthalpies. A mean value of (118.3 ± 3.3) kJ • mol -1 was obtained. The vaporization enthalpies of perylene and coronene were also measured by correlation
Enthalpies and entropies of fusion and of sublimation at the temperature 298.15 K of thiourea and sevenN-alkylthioureas
✍ Scribed by Giuseppe Della Gatta; ; Małgorzata Jóźwiak; ; Bruno Brunetti; ; Lorenzo Abate
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 319 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0021-9614
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✦ Synopsis
Comparison was made with the corresponding data for urea and N -alkylureas, which are lower and quite constant as a function of n C .
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Osmotic coefficients of aqueous solutions of sodium n-octane-1-sulphonate, sodium n-decane-1sulphonate, sodium n-dodecane-1-sulphonate, and sodium n-tetradecane-1-sulphonate at the temperature T = 328.15 K and at molalities ranging from (0.01 to 0.30) mol•kg -1 were estimated from vapour pressure os
Excess molar enthalpies and excess molar heat capacities at T = 298.15 K were determined for {xCHCl3 Both experimental properties were represented by a Redlich-Kister type equation. The large negative values of the excess enthalpies and the positive values of the excess heat capacities observed in