Sciact
  • EN
  • RU

Low Temperature Heat Capacity of the System “Silica Gel–Calcium Chloride–Water” Full article

Journal Journal of Thermal Analysis and Calorimetry
ISSN: 1388-6150 , E-ISSN: 1572-8943
Output data Year: 2011, Volume: 103, Number: 2, Pages: 773-778 Pages count : 6 DOI: 10.1007/s10973-010-0981-8
Tags Calcium chloride dihydrate, Low temperature heat capacity, Pore-size effect, Silica gel
Authors Aristov Yuri I. 1 , Kovalevskaya Yulia A. 2 , Tokarev Michael M. 1 , Paukov Igor E. 2
Affiliations
1 Boreskov Institute of Catalysis SB RAS, Prospekt Lavrentieva 5, Novosibirsk 630090, Russia
2 Nikolaev Institute of Inorganic Chemistry SB RAS, Prospekt Lavrentieva 3, Novosibirsk 630090, Russia

Funding (1)

1 Siberian Branch of the Russian Academy of Sciences 22

Abstract: Heat capacity was measured for two composite systems based on silica gel KSK and calcium chloride confined to its pores. One corresponds to an anhydrous state, while another contains water bound with the salt to give the composition of CaCl2·2.04H2O. The measurements were performed in the temperature range of 6–300 K with a vacuum adiabatic calorimeter. The smoothed experimental curves C p (T) were used for calculating the calorimetric entropy and the enthalpy increment for both studied systems as well as the effective heat capacity associated only with water in the hydrated composite. The heat capacities C p (298.15 K) of both composites were compared with those calculated as a linear addition of the heat capacities of silica gel and bulk calcium chloride (or its dihydrate) with appropriate weight coefficients.
Cite: Aristov Y.I. , Kovalevskaya Y.A. , Tokarev M.M. , Paukov I.E.
Low Temperature Heat Capacity of the System “Silica Gel–Calcium Chloride–Water”
Journal of Thermal Analysis and Calorimetry. 2011. V.103. N2. P.773-778. DOI: 10.1007/s10973-010-0981-8 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
Submitted: May 20, 2010
Accepted: Jul 23, 2010
Published online: Aug 12, 2010
Published print: Feb 1, 2011
Identifiers:
Web of science: WOS:000286836000048
Scopus: 2-s2.0-79751536140
Elibrary: 16730624
Chemical Abstracts: 2011:128807
Chemical Abstracts (print): 156:42975
OpenAlex: W2083996218
Citing:
DB Citing
Web of science 7
Scopus 7
Elibrary 7
OpenAlex 9
Altmetrics: