Oxygen Ion Activity and the Solubility of Sulfur Trioxide in Sodium Silicate Melts
Oxygen Ion Activity and the Solubility of Sulfur Trioxide in Sodium Silicate Melts
复制标题
硅酸钠熔体中氧离子活度和三氧化硫的溶解度
DOI：
10.1111/j.1151-2916.1966.tb13301.x
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发表时间：
1966
影响因子：
3.9
通讯作者：
S. Holmquist
中科院分区：
文献类型：
--
作者：
S. Holmquist
三氧化硫在硅酸钠熔体中的溶解度从1150°到1250°C，通过平衡已知含量的二氧化硫和氧气的气体混合物中的熔体来测定。硫酸盐的形成过程为：O2-+ SO2+ 1/2O2= O2-+ SO3= SO42-。在1200°C时获得的数据用线性方程解释：log(SO42-) = log(Pso2½Po21/2) + log Y，其中Y是苏打/二氧化硅比的函数。得到了一系列平行线。在1200℃时计算的相对自由氧离子活度与Toop和Samis热力学模型计算的理论值吻合较好。
The solubility of sulfur trioxide in sodium silicate melts was determined from 1150° to 1250°C by equilibrating melts in gas mixtures of known contents of sulfur dioxide and oxygen. Sulfate forms according to the reactions: O2-+ SO2+ 1/2O2= O2-+ SO3= SO42-. The data obtained at 1200°C were interpreted by the linear equation: log(SO42-) = log(Pso2½Po21/2) + log Y in which Y is a function of the soda/silica ratio. A series of parallel lines was obtained. Relative free oxygen ion activities calculated for 1200°C were in good agreement with theoretical values calculated from the thermodynamic model of Toop and Samis.