Dissolution and solubility of calcite-rhodochrosite solid solutions [(Ca1-xMnx)CO3] at 25 °C
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چکیده
منابع مشابه
Characterization, dissolution and solubility of synthetic cadmium hydroxylapatite [Cd5(PO4)3OH] at 25–45°C
BACKGROUND The substitution of Ca(2+) in Ca-hydroxylapatite by toxic Cd(2+) can cause the forming of Cd-hydroxylapatite and is a significant issue in a great variety of research areas, which hence needs an understanding of the essential physicochemical characteristics. Unfortunately, the solubility product and thermodynamic data for Cd-hydroxylapatite in water under a variety of conditions now ...
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Rhodochrosite is the main Mn mineral phase in neutral to alkaline anoxic environments and is likely the initial precipitation phase when Mn is added to irrigation water. Solutions supersaturated with respect to rhodochrosite that was detected in various natural environments suggest that equilibrium assumptions may not be satisfactory and kinetic processes may be dominant. This study was conduct...
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BACKGROUND The interaction between Ca-HAP and Pb(2+) solution can result in the formation of a hydroxyapatite-hydroxypyromorphite solid solution [(PbxCa1-x)5(PO4)3(OH)], which can greatly affect the transport and distribution of toxic Pb in water, rock and soil. Therefore, it's necessary to know the physicochemical properties of (PbxCa1-x)5(PO4)3(OH), predominantly its thermodynamic solubility ...
متن کاملSolubility Product Study of CdF2 in a Mixed Solvent Medium and Related Ion—Pair Formation at 25 °C
The solubility of CdF2 in the mixed solvent (water(1)+ethanol(2)) with mass fraction, W1 = 0.9,was determined by using solvent evaporating method in the presence of various concentrations(0.100, 0.200, 0.300, 0.400, 0.500, 0.600, 0.800 and 1.500 mo1.1)) of NaCI at 25°C. The values ofsolubility and solubility product constant of CdF2 in the mixed solvent were evaluated at zero ionicstrength upon...
متن کاملCrystal growth of solid solutions Ca1−xSrxF2
The binary phase diagram CaF2–SrF2 was investigated by differential thermal analysis (DTA). Both substances show unlimited mutual solubility. An azeotropic point showing a minimum melting temperature of Tmin = 1373 C for the composition Ca0.582Sr0.418F2. Close to this composition, homogeneous single crystals up to 30mm diameter without remarkable segregation could be grown by the Czochralski me...
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ژورنال
عنوان ژورنال: Geochemical Transactions
سال: 2021
ISSN: 1467-4866
DOI: 10.1186/s12932-021-00075-1