University Links: Home Page | Site Map
Covenant University Repository

THERMAL STABILITY STUDIES ON SOME METAL SOAPS OF HURA CREPITANS SEED OIL

Siyanbola, T. O. THERMAL STABILITY STUDIES ON SOME METAL SOAPS OF HURA CREPITANS SEED OIL. Electronic Journal of Enviromental, Agriculture and Food Chemistry , 10 (8). pp. 2623-2628.

[img] PDF
Download (232Kb)

Abstract

Thermal stability studies on some metal soaps of Hura crepitans seed oil prepared by metathesis in aqueous alcohol solution were carried out. The kinetics of the decomposition was studied thermogravimetrically in the temperature range 160 – 200o C. The values of the rate constant are of the order 10-2min-1 and temperature-dependent. The enthalpy of activation (ΔH‡) of the initial stage of decomposition determined is in the range 9.8 – 37.8 kJmol-1. The thermal stability of the metal soaps was studied in the temperature range 50 – 600o C under nitrogen using thermogravimetric analyzer (TGA). The thermal stability of the soaps was assessed in terms of temperatures at which various extents of decomposition were attained and weight loss at the initial stage of decomposition. Except zinc soap, the weight loss for the metal soaps was less than 10% at temperature up to 250o C. The results suggest that the metal soaps Hura crepitans seed oils could have some industrial applications.

Item Type: Article
Subjects: Q Science > QD Chemistry
Divisions: UNSPECIFIED
Depositing User: Dr Tolutope Siyanbola
Date Deposited: 25 Feb 2016 09:32
Last Modified: 25 Feb 2016 09:32
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/6063

Actions (login required)

View Item View Item