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Title: Physicochemical studies on zinc dicaprylate
Authors: Mehrotra, K N
Singh, Suman
Kumar, Anil
Issue Date: Oct-1992
Publisher: NISCAIR-CSIR, India
Abstract: Zinc dicaprylate has been prepared and characterised by IR, X-ray and TGA techniques. In addition, conductometric, viscometric and density measurements of the soap solutions have been carried out in benzene-methanol mixture (50%, v/v). The IR results support the ionic nature of zinc dica-prylate as well as the dimeric structure of the fatty acid. The X-ray study reveals that zinc soap has a single layer structure. The TGA results suggest that the thermal decomposition of zinc dicaprylate is kinetically of zero order with activation energy of 8.9 kcal mol-1. The values of the critical micelle concentration, CMC, for solutions containing 40%, 50% and 60% methanol in methanol-benzene mixture are 1.9 x 10-3, 2.1 X 10-3 and 2.4 x 10-3 M, respectively. Viscosity and density measurements also support the commencement of micellization at these critical soap concentrations.
Page(s): 756-759
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.31A(10) [October 1992]

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