Solubility of rhodochrosite (MnCO3) in water and seawater
1982; Elsevier BV; Volume: 46; Issue: 10 Linguagem: Inglês
10.1016/0016-7037(82)90119-3
ISSN1872-9533
Autores Tópico(s)Iron oxide chemistry and applications
ResumoThe solubility product of rhodochrosite (MnCO3) was measured in seawater, deionized water and dilute NaCl solutions. The solubility product extrapolated to infinite dilution at 25.0 C was (2.60 ± 0.07)× 10−11. The stoichiometric solubility product measured in seawater of 34.27%. salinity was (3.24 ± 0.23) × 10−9 at 25.0 C and (2.28 ± 0.24) × 10−9 at 3.3 C. The stoichiometric solubility product is in good agreement with the value calculated from an ion association model. The enthalpy of the reaction is in fair agreement with the estimated value.
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