Abstract
The theoretically derived dependence of the water vapor density (concentration) in the air on the absolute temperature permitted us to use the information obtained by thermogravimetric method for assessing the total potential of water remaining in colloids after drying at different temperatures. A close correlation and corresponding linear relationship fitting the fundamental physicochemical law by Landau–Derjaguin were observed between the logarithm modulus of the total potential of moisture left in soil colloids after drying at temperatures 27–70° and 70–200°C and their moisture. The total potential of water bound by hydrates and crystalline hydrates of substances in the soils varied in the range from–660 to–2394 J/g water, and that of water bound in soil clay minerals varied in the range from–714 to–2814 J/g water (which corresponds to the total soil water pressure of–7140 to–28140 atm.).
Similar content being viewed by others
References
S. P. Gabuda, Bound Water. Facts and Hypothesis (Nauka, Novosibirsk, 1982) [in Russian].
B. V. Deryagin and L. D. Landau, “Theory of stability of strongly charged sols and adhesion of strongly charged particles in electrolytic solutions,” Zh. Eksp. Teor. Fiz. 15 (11), 660–672 (1945).
V. I. Perel’man, A Concise Reference Book of a Chemist (Gos. Nauchno-Tekh. Khim. Liter., Moscow, 1954) [in Russian].
A. A. Rode, Fundamentals of Soil Moisture Theory (Gidrometeoizdat, Leningrad, 1965) [in Russian].
A. V. Smagin, A. S. Manucharov, N. B. Sadovnikova, G. V. Kharitonova, and I. A. Kostarev, “The effect of exchangeable cations on the thermodynamic state of water in clay minerals,” Eurasian Soil Sci. 37 (5), 473–478 (2004).
A. V. Smagin, “Theory and methods of evaluating the physical status of soils,” Eurasian Soil Sci. 36 (3), 301–312 (2003).
T. A. Sokolova, T. Ya. Dronova, and I. I. Tolpeshta, Clay Minerals in Soils (Grif i K, Tula, 2005) [in Russian].
I. I. Sudnitsyn, “Soil water content and water supply of plants in the southern Crimea,” Eurasian Soil Sci. 41 (1), 70–76 (2008).
I. I. Sudnitsyn, “The role of exchangeable cations in the decrease of soil moisture energy (pressure) (dedicated to the 110th birthday of A. A. Rode),” Eurasian Soil Sci. 39 (5), 492–497 (2006).
I. I. Sudnitsyn, Mobility of Soil Moisture and Water Consumption by Plants (Moscow State University, Moscow, 1979) [in Russian].
I. I. Sudnitsyn, A. V. Smagin, and A. P. Shvarov, “The theory of Maxwell–Boltzmann–Helmholtz–Gouy about the double electric layer in disperse systems and its application to soil science (on the 100th anniversary of the paper published by Gouy),” Eurasian Soil Sci. 45 (4), 452–457 (2012).
W. W. Wendlandt, Thermal Methods of Analysis (Wiley, New York, 1964; Mir, Moscow, 1978).
Soil Mineralogy with Environmental Application, Ed. by J. B. Dixon and D. G. Schulze (Soil Science Society of America, Madison, WI, 2002).
M. Gouy, “Sur la constitution de la charge electrique a la surface d’un electrolyte,” J. Phys. 4 (9), 457–468 (1910).
S. B. Hendricks, R. A. Nelson, and L. T. Alexander, “Hydration mechanism of the clay mineral montmorillonite saturated with various ions,” J. Am. Chem. Soc. 62, 1437–1464 (1940).
M. Hoseh, “Heat of wetting of some soil colloids at different moisture content,” Soil Sci. 43, 257–276 (1937).
K. Terzaghi and R. Peck, Soil Mechanics in Engineering Practice (Wiley, London, 1948).
Origin and Mineralogy of Clays, Ed. by B. Velde (Springer-Verlag, New York, 1995).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © I.I. Sudnitsyn, 2016, published in Pochvovedenie, 2016, No. 10, pp. 1186–1190.
Rights and permissions
About this article
Cite this article
Sudnitsyn, I.I. Prospects in application of thermal analysis for assessing the total water potential of soils. Eurasian Soil Sc. 49, 1117–1121 (2016). https://doi.org/10.1134/S1064229316080135
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1064229316080135