铝离子对二水硫酸钙晶体结晶性能的影响

发布时间：2018-08-06 08:34

【摘要】：以CaHPO_4·2H_2O和H_2SO4为原料,AlCl3·6H_2O为添加剂,在温度80℃、搅拌速率150 r/min、反应时间4 h的条件下制备CaSO_4·2H_2O晶体,研究了Al~(3+)对CaSO_4·2H_2O晶体结晶性能的影响.结果表明,Al~(3+)浓度增加,CaSO_4·2H_2O晶体宽度提高,长宽比下降,XRD谱衍射峰发生偏移,对应晶面的晶面间距减小;晶面间距减小可能与Al~(3+)掺入CaSO_4·2H_2O晶格间隙中有关,Al~(3+)抑制了晶体沿长度方向生长,降低了CaSO_4·2H_2O的长宽比.
[Abstract]:The effect of Al ~ (3) on the crystalline properties of CaSO_4 2H_2O crystal was studied by using CaHPO_4 2H_2O and H_2SO4 as raw materials, using AlCl _ 3 6H_2O as additive, at 80 鈩，

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