四丁基氟化铵在H_2O-DMF中的电导研究  

Electrical Conductivity of Tetrabutylammonium Fluoride in water-N,N-Dimethyl Formamide Mixed Solvent

作　　者：徐珍[1,1] 吕早生[1,1] 孙昱[1,1] 

机构地区：[1]武汉科技大学化学工程与技术学院湖北省煤转化与新型碳材料重点实验室,武汉430081

出　　处：《化学通报》2016年第2期179-182,共4页Chemistry

摘　　要：测量了298.15 ～328.15 K温度范围内四丁基氟化铵在20（wt）％～80（wt）％H2O/DMF混合溶液中的电导率,测得的电导率分别通过Kray-Bray方程和Shedlovsky方程分析,推导出了四丁基氟化铵在H2O-DMF混合溶液中的摩尔极限电导、缔合常数和离解常数,并计算出缔合反应的热力学参数（△Ga,△Ha,△Sa）;同时探讨了温度和混合溶剂的组成对摩尔极限电导、缔合常数和热力学参数的影响.Conductance measurements at temperatures range from 298. 15 to 328. 15k were performed for tetrabutylammonium fluoride （TBAF） in 20 （wt）% - 80（ wt）% water/DMF mixtures. The conductivity data had been analyzed using Kraus-Bray and Shedlovsky models, the limiting equivalent conductance, the association constants, dissociation constants and thermodynamic parameters of association （ △ G, △Ha, △Sa ） for TBAF were calculated and discussed based on the effect of the temperature and the composition of solvent mixture on them.

关 键 词：四丁基氟化铵 缔合常数 H2O-DMF混合溶剂 摩尔极限电导 

分 类 号：O646.1[理学—物理化学]