Date of Award
12-22-2010
Document Type
Thesis
Degree Name
Chemistry, MS
First Advisor
Mark Draganjac
Committee Members
Allyn ontko; Hideya Koizumi
Call Number
LD 251 .A566t 2010 K19
Abstract
The thermal decomposition, dehydration and thermal stability studies of nickel (II) chloride hexahydrate and nickel (II) chloride hexahydrate with electropositive metals cobalt, cadmium, iron, chromium, zinc and manganese have been investigated by non-isothermal method using TG/DTA under argon gas flow. The thermal decomposition and dehydration reactions reveal that there is loss of six water molecules from NiCl2.6H2O. A catalytic action of Cu from Cu pans in thermal decomposition reactions of NiCl2.6H2O and NiCl2.6H2O with electropositive metals was also observed. The change in enthalpy (∆H) of the Fe and Co with NiCl2.6H2O was calculated from the TG/DTA plot onset temperature, using Kirchoff's equation. The calculated ∆H values of NiCl2.6H2O with Co and Fe showed a negative value indicating the same mode of exothermic reactions as observed in TG/DTA plots. We are unable to comprehend the variations in thermal behavior of NiCl2.6H2O with other electropositive metals Cd, Cr, Zn and Mn. However, the entire study may provide a vision for future use of NiCl2.6H2O in various industries like the reactions taking place during extractive metallurgy, electrochemical reactions, surface science, and recovery of metals from spent catalysts, industrial wastes and dump slag.
Rights Management
This work is licensed under a Creative Commons Attribution 4.0 International License.
Recommended Citation
Kamineni, Rajeshwari Devi, "Preliminary Analysis of Thermally Induced Condensed Phase Electron Transfer Reactions of Nickel Chloride with Electropositive Metals" (2010). Student Theses and Dissertations. 971.
https://arch.astate.edu/all-etd/971
