Abstract

The present study aims to evaluate the spectroscopic and thermal properties of nickel soaps (myristate, palmitate, and stearate).
The main methods of structural investigation such as infrared, X-ray diffraction, and thermogravimetric analysis (TGA) are
examined in detail based on common synthetic routes, leading to the isolation of metal soaps. The results of IR spectra confirm
its ionic nature and dimeric structure through intermolecular hydrogen bonding. The double-layer structure of nickel soaps is
confirmed by X-ray diffraction measurements. Data of TGA show that the decomposition reaction of nickel soaps is zero order
and activation energy was found to be 7.8–20.0 kcal/mol.