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首页> 外文期刊>Journal de Chimie Physique et de Physico-Chimie Biologique >Magnesium and occluded water in calcium carbonate monohydrate
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Magnesium and occluded water in calcium carbonate monohydrate

机译:一水碳酸钙中的镁和闭塞水

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摘要

Calcium carbonate monohydrate spherulites (approx 10~2 #mu#m diameter) with different magnesium contents were synthesized from artificial seawater. Stable spherulites are only obtained if [Mg]/[Ca] >= 1-1.3 in the mother solution. Spherulites are surrounded by a skin of ~15 #mu#m thickness, about 5 times richer in Mg~(2+) than the bulk and which play a protective role from the stability viewpoint. Etching and crushing experiments were performed which confirm i.a. that the isotropic CO_3~- and CO_2~- radicals are located in the occluded water surrounding the constituent crysallites of the spherulites.
机译:从人造海水中合成了镁含量不同的碳酸钙一水合物球晶(直径约10〜2#μm)。仅在母液中[Mg] / [Ca]> = 1-1.3时才能获得稳定的球晶。球晶被约15#μm厚的表皮所包围,Mg〜(2+)的含量是主体的约5倍,并且从稳定性的角度来看起保护作用。进行蚀刻和压碎实验以确认i.a.认为各向同性的CO_3〜-和CO_2〜-自由基位于球晶组成冰晶石周围的封闭水中。

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