Low-temperature heat capacity of 1-bromoperfluorooctane

Heat capacity enhancement and thermodynamic properties of nanostructured amorphous SiO2

“…An Al 2 O 3 pan was used as sample container and an empty Al The heat capacity data of na-SiO 2 samples at low temperature were measured with a full-automatic adiabatic calorimeter in the Thermochemistry Laboratory of Moscow University. The construction and its main principles have been described in detail previously [12,13]. The measurement mean square deviation over the temperature range from 85 to 356 K is within 0.3% as compared with the heat capacity of benzoic acid recommended by the National Bureau of Standards.…”

Thermodynamics of the Phase Equilibriums of Some Organic Compounds

“…6). This method permits the heat interchange between the calorimeter and surroundings to be taken into account (Varushchenko et al, 1997a). The reliability of this method was proved by a congruence within (0.1 to 0.2) per cent of the heat capacity values of an empty calorimeter, measured in the temperature interval (90 to 110) К using different refrigerants: liquid helium and nitrogen.…”

“…The adiabatic method is used for exploring the thermal processes with different times of relaxation and the metastable phases which can exist in wide temperature ranges. The heat capacities and thermodynamic properties of the phase transitions were investigated in this work by low-temperature adiabatic calorimetry (Varushchenko et al, 1997a).…”

Calorimetric Study of Polyketone Formed from Carbon Monoxide, Ethylene and Butene-1

“…1 H NMR and 77.16 ppm for 13 C NMR). It was shown that the macromolecule contained lengthy fragments (-ethane-CO-ethane-CO-) n , as well as shorter fragments (-butane-CO-) m .…”