THERMAL-DIFFUSION OF TETRABUTYLAMMONIUM SALTS IN AQUEOUS-SOLUTION AT 25-DEGREES-C

被引:0
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作者
HUI, L [1 ]
LEAIST, DG [1 ]
机构
[1] UNIV WESTERN ONTARIO,DEPT CHEM,LONDON N6A 5B7,ONTARIO,CANADA
关键词
SORET COEFFICIENT; ENTROPY OF TRANSPORT; THERMAL DIFFUSION; TETRABUTYLAMMONIUM SALTS; AQUEOUS;
D O I
暂无
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A conductimetric technique is used to measure the Soret coefficients of dilute aqueous solutions of tetra-n-butylammonium (NBu4) chloride, bromide, iodide and thiocyanate at 25-degrees-C and salt molalities from 0.0005 to 0.02 mol-kg-1. Entropies of transport calculated from the Soret coefficients pass through minima near 0.001 mol-kg-1 for NBu4I and NBu4SCN, and near 0.003 mol-kg-1 for NBu4Cl and NBu4Br. The results for NBu4Cl are in good agreement with those obtained by Lin et al. from thermocell measurements.
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页码:199 / 205
页数:7
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