Thermal Stability and Decomposition Behavior of Poly[ethylenediaminetetraacetato-aqua-disodium-nickel(II)] Revealed by TGA–DTA Analysis

Ruziyev U.U; Turaev Kh.Kh; B.A.Kholnazarov; Ibragimov A.B; Kholturaev K.B

Vol. 4 No. 5 (2026), Articles

Vol. 4 No. 5 (2026)

Thermal Stability and Decomposition Behavior of Poly[ethylenediaminetetraacetato-aqua-disodium-nickel(II)] Revealed by TGA–DTA Analysis

Articles

Published 2026-06-30

Ruziyev U.U⁺⁻
Turaev Kh.Kh⁺⁻
B.A.Kholnazarov⁺⁻
Ibragimov A.B⁺⁻
Kholturaev K.B⁺⁻

Ruziyev U.U

Department of Chemistry, Termez State University, 43 Barkamol Avlod Street, Termez, 190111, Uzbekistan

Turaev Kh.Kh

Department of Chemistry, Termez State University, 43 Barkamol Avlod Street, Termez, 190111, Uzbekistan

B.A.Kholnazarov

Department of Chemistry, Termez State University, 43 Barkamol Avlod Street, Termez, 190111, Uzbekistan

Ibragimov A.B

Institute of General and Inorganic Chemistry of Uzbekistan Academy of

Kholturaev K.B

Department of Chemistry, Termez State University, 43 Barkamol Avlod Street, Termez, 190111, Uzbekistan

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How to Cite

Thermal Stability and Decomposition Behavior of Poly[ethylenediaminetetraacetato-aqua-disodium-nickel(II)] Revealed by TGA–DTA Analysis. (2026). Yangi O’zbekistonda Tabiiy Va Ijtimoiy-Gumanitar Fanlar Respublika Ilmiy Amaliy Konferensiyasi, 4(5), 238-242. https://universalpublishings.com/index.php/gumanitar/article/view/19915

Abstract

The thermal stability of poly[ethylenediaminetetraacetato-aqua-disodium-nickel(II)] was investigated using simultaneous thermogravimetric (TGA) and differential thermal (DTA) analyses. The coordination polymer exhibited a three-stage decomposition process between 25 and 800 °C. The first stage (88.0-316.9 °C) was associated with the removal of coordinated water molecules and the initial degradation of the EDTA ligand, resulting in a 40.82% mass loss. The second stage (316.9-439.2 °C) corresponded to the decomposition of the EDTA framework and cleavage of metal-ligand bonds with a 29.62% weight loss. The final stage (441.4-753.0 °C) involved oxidation of residual organic fragments, contributing an additional 9.97% mass loss. A residual mass of 19.59% indicates the formation of thermally stable nickel-containing inorganic products. These findings demonstrate that the synthesized coordination polymer remains thermally stable up to approximately 300 °C before undergoing stepwise decomposition.Keywords: Nickel(II), EDTA, Coordination Polymer, Thermogravimetric Analysis, Thermal Stability, TGA, DTA.

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References

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