A new hydrate of magnesium carbonate, MgCO3·6H2O
Schmidt, Horst
Voigt, Wolfgang
DOI: https://doi.org/10.1107/S2053229620001540
Persistent URL: http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8989
Rincke, Christine; Schmidt, Horst; Voigt, Wolfgang, 2020: A new hydrate of magnesium carbonate, MgCO3·6H2O . In: Acta Crystallographica Section C , 76 , 3 , 244 -249, DOI: https://doi.org/10.1107/S2053229620001540.
Abstract
During investigations of the formation of hydrated magnesium carbonates, a sample of the previously unknown magnesium carbonate hexahydrate (MgCO3·6H2O) was synthesized in an aqueous solution at 273.15 K. The crystal structure consists of edge-linked isolated pairs of Mg(CO3)(H2O)4 octahedra and noncoordinating water molecules, and exhibits similarities to NiCO3·5.5H2O (hellyerite). The recorded X-ray diffraction pattern and the Raman spectra confirmed the formation of a new phase and its transformation to magnesium carbonate trihydrate (MgCO3·3H2O) at room temperature.