尿素-乙酰胺金属氯化物熔体的电导特性研究  

Electrical Conductance of Urea-Acetamide-Metal Chloride Melts

作　　者：刘青[1] 王建朝[1] 张新田[1] 赵世俊[1] 

机构地区：[1]青海师范大学化学系,西宁810008

出　　处：《西南大学学报（自然科学版）》2007年第1期20-24,共5页Journal of Southwest University(Natural Science Edition)

基　　金：国家自然科学基金(50264004);教育部重点科学技术研究资助项目(03136).

摘　　要：测定了尿素-乙酰胺、尿素-乙酰胺-LiCl、尿素-乙酰胺-NaCl、尿素-乙酰胺-KCl,尿素-乙酰胺-LiCl、尿素-乙酰胺-NiCl_2、尿素-乙酰胺-YCl_3熔体的电导率．研究了温度、浓度、碱金属离子大小以及不同电荷离子对熔体电导率的影响,在所研究的温度范围内(60～80℃),上述体系(除尿素-乙酰胺-YCl_3熔体)的电导率与温度成直线关系．尿素-乙酰胺-碱金属氯化物熔体的电导率随碱金属阳离子半径的增大而增大,且与碱金属阳离子半径的平方的倒数成线性关系．在0．32 mol·L^(-1)无机盐(LiCl,NiCl_2,YCl_3)浓度附近,摩尔电导从大到小的顺序是LiCl,1/2NiCl_2,1/3 YCl_3．The conductivity of urea-acetamide, urea acetamide-LiCl, urea acetamide-NaCl, urea acetamide- KCl, urea acetamide-NiCl2, urea acetamide-LiCl, and urea acetamide-YCl3 melts was determined and the influences of temperature, concentration, and size of the alkali metal ions on it were invest the temperature range of the experiment （60-80℃ ）, the conductivity of the above-mention igated. Within ed melts, with the exception of urea acetamide-YCl3, showed a linear relationship with temperature. The conductivity urea-acetamide-alkali metal chloride melts increased with cation radius and exhibited a linear relationsh with the reciprocal of cation radius square. With an inorganic salt （LiCl, NiCl2 and YCl3） concentration about 0. 32 mol/L, their conductivity appeared in the order of LiCl〉1/2 NiCl2〉1/3 YCl3.

关 键 词：尿素-乙酰胺-无机盐 熔盐电导 电导率 

分 类 号：O646[理学—物理化学]