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Journal article
Measurement and prediction of molar volumes of bivalent metal sulfates and their mixtures in aqueous solution
Journal of solution chemistry
2023
Abstract
Densities of aqueous solutions of MnSO4, CoSO4, NiSO4 and CuSO4 have been measured by vibrating tube densimetry up to near-saturation concentrations over the temperature range 293.15 <= T/K <= 343.15 at 5 K intervals and at 0.1 MPa pressure. Apparent molar volumes, V-Phi , calculated from the densities revealed close similarities among all four electrolytes, with their V-Phi values essentially differing by constant concentration-independent addends for each salt at each temperature. It was found that there is an almost linear rela-tionship between V-Phi(MSO4,aq) and the M-O bond length of the hydrated cations obtained from structural studies. This relationship can be used to predict values of V-Phi(MSO4,aq) for other sulfate salts over wide ranges of concentration and temperature, providing that the requisite structural data are available. Measurements of selected ternary, quaternary and quinary mixtures of these electrolytes at constant total concentrations showed that their V-Phi values almost always exhibit linear mixing (Young's rule) behavior at all temperatures investigated. This finding can be exploited to predict the volumetric properties of solutions containing complex mixtures of bivalent metal sulfates.
Details
- Title
- Measurement and prediction of molar volumes of bivalent metal sulfates and their mixtures in aqueous solution
- Authors/Creators
- Tuomas Vielma - University of OuluLubomir Hnedkovsky - Murdoch Univ, Chem Dept, 90 South St, Murdoch, WA 6150, AustraliaGlenn Hefter - Murdoch Univ, Chem Dept, 90 South St, Murdoch, WA 6150, Australia
- Publication Details
- Journal of solution chemistry
- Publisher
- Springer Nature
- Number of pages
- 25
- Grant note
- Walter Ahlstroem Foundation Finnish Research Impact Foundation (TV) Finnish Cultural Foundation (PoDoCo program) Murdoch University
- Identifiers
- 991005602257707891
- Copyright
- © 2023 The Author(s)
- Murdoch Affiliation
- School of Mathematics, Statistics, Chemistry and Physics
- Language
- English
- Resource Type
- Journal article
Metrics
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InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 2 Chemistry
- 2.89 Ionic, Molecular & Complex Liquids
- 2.89.462 Excess Molar Volumes
- Web Of Science research areas
- Chemistry, Physical
- ESI research areas
- Chemistry