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《Journal of Taiyuan University of Technology》 2012-03
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The Effect of Particle Size on the Solubility Product of Nano-barium Sulfate

CUI Zi-xiang1,XUE Yongqiang1,LI Bing1,LI Ping2(1.College of Chemistry and Chemical Engineering,TUT, Taiyuan 030024,China; 2.Research Center of Environmental Science and Engineering,Shanxi University,T aiyuan 030006,China)  
The effects of particle size on the solubility and sol ubility product of nano-BaSO4 were analyzed in theory,the thermodynamic rela tions between solubility and particle size and between solubility pr oduct and particle size were derived.Besides,the solubility a nd solubility product of nano-BaSO4 with different sizes were determined, and and effects of particle size on the solubility and solubility product w ere discussed.The results show that the particle size of nano-BaSO4 had a con siderable influence on the solubility and solubility product;the smaller size led to the higher solubility and solubility product,and the logarithm of the solubility and the logarithm of the solubility product had linear relation with the reciprocal of particle size separately;and the experimental results are in accordance with the theoretical analysis.
【Fund】: 国家自然科学基金资助项目(20773092)
【CateGory Index】: TB383.1
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