Reassembling and testing of a high-precision heat capacity drop calorimeter. Heat capacity of some polyphenyls at T= 298.15 K

Recommended vapor pressure and thermophysical data for ferrocene

“…The heat capacity of the crystalline phase was also measured at T = 298.15 K using a non-commercial high-precision drop calorimeter (University of Porto) and the drop method, which is described in detail in [25][26][27]. The apparatus comprises two main parts: a furnace for temperature equilibration of the sample ampoule and a calorimetric receiving block based on a twin heat conduction type.…”

Heat capacities at 298.15K of the extended [CnC1im][Ntf2] ionic liquid series

“…The heat capacities at 298.15 K of [C n C 1 im][Ntf 2 ] were measured by a high-precision heat capacity drop calorimeter, developed by Wadsö [9,10] at the Thermochemistry Laboratory, Lund, Sweden, being afterwards transferred to Porto, Portugal, where its temperature sensors and electronics were modernized to enable the use of computer data acquisition in a user-friendly environment [11]. The apparatus comprises two main parts: the furnace and the receiving calorimeter.…”

“…For the calculation of the heat capacities, the apparatus calibration constant was derived from the sapphire and water calibrations, and the value (6.6329 ± 0.0046 W Á V À1 ) was used. The accuracy of the apparatus for the measurements of the heat capacities for liquids and solids was evaluated before, based on the measurements of benzoic acid and hexafluorobenzene [11]. Since the calorimeter was now used to measure the heat capacity of ionic liquids, the accuracy was additionally checked on the basis of the results obtained for [C 6 …”

“…The heat capacities of the nine ILs were measured by means of a high-precision heat capacity drop calorimeter developed by Wadsö [9,10] and recently modernized at our laboratory [11]. The quality of the heat capacity data, is comparable, in accuracy, with the best literature data measured by adiabatic calorimetry [12][13][14][15][16][17].…”

Evidence of an odd–even effect on the thermodynamic parameters of odd fluorotelomer alcohols

“…3) J Á K À1 Á mol À1 , and C p;m ðcrÞ = (468.6 ± 1.1) J Á K À1 Á mol À1 were obtained, respectively. The measurement procedure and the description of the apparatus have been described in detail elsewhere by Santos et al [47], and the additional information concerning the experimental calibration procedure of the apparatus is available as Supporting Information. From the previous data, D g l C p;m = À(162 ± 5) J Á K À1 Á mol À1 and D g cr C p;m = À(110 ± 5) J Á K À1 Á mol À1 were derived for 6:1 FTOH and 7:1 FTOH.…”