新形SrCO_3晶体的制备  

Synthesis of SrCO_3 with New Shape

作　　者：刘伟明[1,2] 白国英[1] 李春梅[1] 谷宁[1] 

机构地区：[1]河北师范大学化学与材料科学学院,石家庄050016 [2]复旦大学化学系激光化学研究所,上海200433

出　　处：《河北省科学院学报》2010年第3期13-15,共3页Journal of The Hebei Academy of Sciences

基　　金：河北师范大学科研基金(L2007Y04)

摘　　要：以氯化锶、尿素、氢氧化纳、乙二胺四乙酸二钠和淀粉为原料,通过络合与均相沉淀法成功合成了稻草束状和花状碳酸锶晶体,并应用XRD、SEM和IR技术对样品进行了检测和表征。结果表明:添加EDTA和淀粉,对碳酸锶晶形有显著影响,可得到纯度高、分散性好的束状的亚微米级碳酸锶晶体。Fasciculate and flower-like strontium carbonate is successfully synthesized by a simple complexing reaction and homogeneous precipitation method with the raw materials, such sa strontium chloride,urea,sodium hydroxide, starch and ethylenediamineteraacetic acid disodium salt. The sample of product was analyzed by X-ray powder diffraction, scanning electron microscopy and the infrared. This research reveals that ethylenediamineterraacetic acid disodium salt and starch play important roles in determining the final produc morphology and can form submicron fasciculate and flower-like particles, which has better dispersion property and higher purity.

关 键 词：碳酸锶 束状 均相沉淀法 乙二胺四乙酸二钠(EDTA) 

分 类 号：O741[理学—晶体学]