The crystal structure of dypingite: understanding the long-range disorder.

ABSTRACT: Dypingite, a hydrated magnesium carbonate hydroxide mineral [Mg₅(CO₃)₄(OH)₂·XH₂O, X = 5-6], exhibits promising catalytic and purification properties. Although it was discovered 55 years ago, the crystal structure of this compound has remained unknown due to its aggregated morphology and structural disorder. This work investigates the origin of this phenomenon through a systematic analysis of synthetic and natural mineral samples, using synchrotron powder X-ray diffraction, thermogravimetric analysis and transmission electron microscopy. The findings reveal that ambient humidity significantly influences dypingite's structural properties at room temperature. High humidity (80% relative humidity at 22 °C) causes inhomogeneou

SUBMITTER: Sednev-Lugovets A 

PROVIDER: S-EPMC12810463 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature