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Comparative study of the thermal analyses of some transition metal(II) maleates and fumarates

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Abstract

The thermal decompositions of maleates and fumarates of Cu(II) and Zn(II) have been studied by employing simultaneous non-isothermal techniques (DTG, DTA and TG). The end-products are the corresponding metal oxides, as characterized by chemical analysis and X-ray diffraction. Comparison of theTm values led to the stability sequences Cu(F)>Cu(M); Zn(F)>Zn(M) and Cu(M)≈ Cu(F); Zn(F)>Zn(M) for dehydration and decomposition, respectively.

Zusammenfassung

Die thermische Zersetzung von Maleaten und Fumaraten von Cu(II) und Zn(II) wurde mittels simultan angewandter nicht-isothermer Techniken (DTG, DTA und TG) untersucht. Die Endprodukte sind die entsprechenden Metalloxide, wie durch chemische Analyse und Röntgendiffraktometrie nachgewiesen wurde. Ein Vergleich der Tm-Werte ergab für die Stabilität in der Dehydratisierungs- bzw. Zersetzungsreaktion die Reihenfolgen Cu (F) > Cu (M); Zn (F) > Zn (M) bzw. Cu (M) ≈ Cu (F); Zn (F)>Zn (M).

Резюме

Совмещенным неизоте рмическим методом ДТ Г, ДТА и ТГ изучено термичес кое разложение малеатов и фумаратов меди и цин ка. Конечными продуктам и реакции разложения являлись окиси соотв етствующих металлов, идентифицированных химическим анализом и рентгенофазовым ана лизом. Согласно значе ниямT m , устойчивость компле ксов располагается в ряд Cu (F)>Cu (M); Zn (F)>Zn (M) и Cu (M) ≈ Cu (F); Zn (F)>Zn (M), соотв етственно, для реакций дегидратаци и и разложения.

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Authors and Affiliations

  1. Department of Chemistry, Guru Nanak Dev University, 143 005, Amritsar, India

    P. S. Bassi, B. S. Randhawa, C. M. Khajuria & Sandeep Kaur

Authors
  1. P. S. Bassi
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  2. B. S. Randhawa
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  3. C. M. Khajuria
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  4. Sandeep Kaur
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Bassi, P.S., Randhawa, B.S., Khajuria, C.M. et al. Comparative study of the thermal analyses of some transition metal(II) maleates and fumarates. Journal of Thermal Analysis 32, 569–577 (1987). https://doi.org/10.1007/BF01912710

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  • DOI: https://doi.org/10.1007/BF01912710

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