WebAmorphous calcium carbonate (ACC) is often a critical transient phase in the formation of crystalline phases of CaCO3via dehydration of hydrated ACC. The behavior of the water molecules plays a pivotal role in this transformation. We report … Web13 jan. 2014 · Amorphous calcium carbonate (ACC) is a common transient precursor to biogenic crystalline calcium carbonate, but factors controlling the amorphous to crystalline transformation remain unclear. We present a structural analysis and comparison of hydrated and partially dehydrated, synthetic ACC samples. Thermogravimetric analysis …
Bone mineral: new insights into its chemical composition
Web13 jan. 2014 · Amorphous calcium carbonate (ACC) is a common transient precursor to biogenic crystalline calcium carbonate, but factors controlling the amorphous to … Web28 jan. 2014 · The recognition that hydrated amorphous precursor phases can play key roles in the formation of vertebrate and invertebrate biominerals has generated … byron bayers twin bridges
Hydration enthalpies of amorphous sucrose, trehalose …
Web27 jul. 2024 · Intermediate water (IW) in hydrated bioactive glasses remains uninvestigated. We obtained titanium (Ti)-containing bioactive glasses (BGTs) (Ti at 5%, 7.5% and 10% of the glass system) using the sol–gel technique. Their thermal, physicochemical, and morphological properties, before and after Ti-doping, were analysed using DTA, XRD, … WebA method is developed for the quantification of the amorphous phases present in hydrating slag in a sodium hydroxide solution. In hydrating slag, the amorphous reaction product is … WebIn particular, the initial hydration of amorphous sucrose shows a highly exothermic Hmw (approximately −12 kJ mol−1 for the fast scan). Then, an endothermic thermal event in the form of a step in the region 2–3 wt% corresponding to a water-induced isothermal glass transition ( Fig. 1c) is seen. clothing brands yellowstone