摘要
文章研究了硫酸根离子(SO_(4)^(2-))对碳酸钙结晶的影响。结晶溶液中加入SO_(4)^(2-)后,碳酸钙的结晶速度下降,晶相组成由以方解石相为主转变为以文石相为主,证实了SO_(4)^(2-)对方解石相生长的强烈抑制作用,这是由于SO_(4)^(2-)与方解石{104}晶面的相互作用比与文石{111}晶面更强。对于方解石相,当SO_(4)^(2-)存在时,其{110}晶面得到显著暴露。SO_(4)^(2-)掺杂进入碳酸钙结晶,但未在结晶中形成单独的硫酸钙相。
The effect of SO_(4)^(2-)on CaCO_(3) crystallization was investigated in this article.The crystallization rate of CaCO_(3) decreases in the presence of SO_(4)^(2-),and aragonite phase dominates the composition of the CaCO_(3) crystals compared with calcite phase in the absence of SO_(4)^(2-),demonstrating the strong inhibitive effect of SO_(4)^(2-)on the growth of calcite.The inhibition for calcite growth is attributed to the stronger interaction between SO_(4)^(2-)and calcite{104}than that between SO_(4)^(2-)and aragonite{111}.For the calcite phase in the presence of SO_(4)^(2-),the remarkable growth of{110}faces can be observed.There is no individual formation of pure CaSO_(4) phase in the CaCO_(3) crystals in spite of the incorporation of SO_(4)^(2-)into the crystals.
作者
江云
唐永明
宋荷美
刘洋
周树峰
杨超思
JIANG Yun;TANG Yongming;SONG Hemei;LIU Yang;ZHOU Shufeng;YANG Chaosi(Jiangsu Fangyang Water Co.,Ltd.,Lianyungang 222065,China;School of Chemistry and Molecular Engineering,Nanjing Tech University,Nanjing 211816,China)
出处
《盐科学与化工》
2026年第2期38-42,共5页
Journal of Salt Science and Chemical Industry
基金
江苏省产学研项目(BY20231422)。
