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应用电导法测定了298K时稀土氯化盐DyCl3在混合溶剂(DMF-H2O)中的活度系数,在298K时测定了稀土氯化盐DyCl3在混合溶剂(DMF-H2O)中的电导率,利用公式计算了稀土氯化盐DyCl3的摩尔电导率,应用Debye-Hucker和Osager-Falkenhangen公式计算了OyCl3在混合溶剂(DMF-H2O)中的活度系数,并讨论了在298K时浓度对稀土盐DyCl3溶液活度系数的影响,随稀土氯化盐溶液浓度增加,稀土盐溶液的活度系数降低.
The activity coefficient of rare earth chloride DyCl3 in mixed solvent (DMF-H2O) was measured by conductivity method at 298K. The conductivity of rare earth chloride DyCl3 in DMF-H2O was measured at 298K. The molar conductivity of rare earth chloride DyCl3 was calculated by the formula. The activity coefficient of OyCl3 in mixed solvent (DMF-H2O) was calculated by Debye-Hucker and Osager-Falkenhangen formula. The effect of concentration of rare earth salt DyCl3 Solution activity coefficient, with the concentration of rare earth chloride salt solution increases, the activity coefficient of rare earth salt solution decreases.