Effect of concentration and temperature on the interactions between saline soil salts and nitro phosphate fertilizer under atmospheric pressure: A thermo-acoustic approach
Journal of Molecular Liquids(2017)
Abstract
A decrease in the ability of the plants to absorb nutrients usually takes place in saline soils. Application of fertilizers corrects nutrients deficiencies and decreases the adverse effects of saline salts on the plants. The present work is aimed to study the interactions of fertilizer with saline salts in aqueous solutions to explore the role of fertilizer on soil fertility by controlling soil salinity in terms of fertilizer-salt interactions. Density and speed of sound of nitrophosphate in water and in saline salts solutions of different concentrations has been measured at different temperatures. Thermo acoustical parameters like apparent and partial molar volume, partial molar expansibility and Hepler's constant, compressibility factor and intermolecular free length have been calculated. Positive values of apparent molar volume (VФ) and negative values of apparent and partial molar compressibility (KФ and Kфo)of fertilizer in solutions showed strong intermolecular interactions in solutions. Positive values of Hepler's constant indicate the structure making behavior of fertilizer in water and in saline salt solutions.
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Key words
Nitrophosphate,Saline salts,Volumetric parameters,Acoustic parameters,Intermolecular interactions
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