In this study, the influence of Mg2+ on the aggregation and morphology of precipitated aragonite crystals is investigated at different temperatures. Different from some investigations described in the literature, aragonite precipitates in chemical systems in which Mg2+ acts specifically as crystal habit modifiers and not as polymorphic selectors. The results show that at increased Mg2+ concentration and temperature the aragonite crystals are less aggregated and that the amount of crystals sharing {110} faces and having larger extension of {001} faces increases. These outcomes may be relevant in biological, geochemical and technological contexts.
Fermani, S., Njegić Džakula, B., Reggi, M., Falini, G., Kralj, D. (2017). Effects of magnesium and temperature control on aragonite crystal aggregation and morphology. CRYSTENGCOMM, 19(18), 2451-2455 [10.1039/C7CE00197E].
Effects of magnesium and temperature control on aragonite crystal aggregation and morphology
Fermani, S.;Reggi, M.;Falini, G.
;
2017
Abstract
In this study, the influence of Mg2+ on the aggregation and morphology of precipitated aragonite crystals is investigated at different temperatures. Different from some investigations described in the literature, aragonite precipitates in chemical systems in which Mg2+ acts specifically as crystal habit modifiers and not as polymorphic selectors. The results show that at increased Mg2+ concentration and temperature the aragonite crystals are less aggregated and that the amount of crystals sharing {110} faces and having larger extension of {001} faces increases. These outcomes may be relevant in biological, geochemical and technological contexts.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
