Study on the Forming Mechanism and Preparation of Different Morphology of Barium Carbonate Crystals

• 作 者: 王丽娜 霍冀川 刘铭 刘树信 雷永林
• 机 构: Institute of Applied Chemistry,Southwest University of Science and Technology,Department of Chemistr
• 出 处: 结构化学
• 发表日期: 2011年12期
• 关键词: flower carbonate belongs adding branches orthorhombic spacing surfactant have di

Different morphologies of BaCO3 crystals with dendritic structure,spinous sphere structure,and spike-,flower-and rod-like structures were prepared with(C2H5)2CO3 and BaCl2.2H2O as raw materials by homogeneous precipitation method.The crystals have been characterized by SEM,FT-IR and XRD,indicating that the different morphology of BaCO3 crystals belongs to the orthorhombic crystal system with uniform distribution and integral shapes.The effect of reaction conditions and the possible formation mechanism on the morphology of BaCO3 crystals have been discussed.

Different morphologies of BaCO3 crystals with dendritic structure, spinous sphere structure, and spike-, flower-and rod-like structures were prepared with (C2H5) 2CO3 and BaCl2.2H2O as raw materials by homogeneous precipitation method. The crystals have been classified by SEM , FT-IR and XRD, indicating that the different morphology of BaCO3 crystals belongs to the orthorhombic crystal system with uniform distribution and integral shapes.The effect of reaction conditions and the possible formation mechanism on the morphology of BaCO3 crystals have been discussed.