Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

Electrical Conductivity of s-Acetylthiocholine Halides and Perchlorate in Acetonitrile at 40�?�??�?°C

Author(s): *Nasr H. El-Hammamya, Aida I. Kawanab, Marwa N.El-Hammamyc and Heba M. Moharema

The conductance of s-acetylthiocholine halides and perchlorate has been measured in acetonitrile at 40°C.The data were analyzed using the Fuoss-Onsager equation for 1:1 associated electrolytes and the characteristic functions, Λ�?¢�?�??�?¦ (equivalent conductance at infinite dilution), a�?¢�?�??�?¦ [contact distance of approach (solvation)] and KA (association constant) were computed. KA values were analyzed on the basis of the solvent separated-ion pair model. The electrostatic Stokes' radii (R++ R-) were calculated and their sum was compared with the value of a° confirming the above model.

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