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Your search keyword '"Neeta Tiwari"' showing total 2 results
Start Over Author "Neeta Tiwari" Topic thermogravimetry
2 results on '"Neeta Tiwari"'

1. Thermal behaviour of 8-hydroxyquinoline complexes with nickel(II)/copper(II)/zinc(II) hydroxides

Author

Neeta Tiwari and B. L. Dubey

Subjects
Thermogravimetry, chemistry.chemical_compound, Nickel, Chemistry, Differential thermal analysis, Inorganic chemistry, chemistry.chemical_element, 8-Hydroxyquinoline, Zinc, Atmospheric temperature range, Decomposition, Copper
Abstract

Thermal behaviour of M(OH)2(8-HQ)2 (M=Ni, Cu and Zn; 8-HQ=8-hydroxyquinoline) has been studied by dynamic TG and DTA methods in nitrogen atmosphere. The percent weights lost in different temperature range was calculated from TG curves. The mode of decomposition has been supported by endotherms observed in DTA curves of the respective compounds.

Published
1997
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2. Solid-State Reaction between Zinc Hydroxide and 8-Quinolinol

Author

Bharat Lal Dubey and Neeta Tiwari

Subjects
Thermogravimetry, chemistry.chemical_compound, Reaction rate constant, Elemental analysis, Chemistry, Zinc hydroxide, Inorganic chemistry, Thermal decomposition, chemistry.chemical_element, Infrared spectroscopy, General Chemistry, Zinc, Activation energy
Abstract

Solid-state reaction between zinc hydroxide and 8-quinolinol [8-HQ] has been studied. Reaction product has been characterized to be Zn(OH)2(8-HQ)2 by elemental analysis, quantitative estimation of zinc, thermal decomposition in air, thermogravimetry in nitrogen atmosphere, powder X-ray diffraction patterns, and IR spectra. Kinetics of reaction has been investigated by capillary method at different temperatures. Energy of activation for the reaction has been found to be 45.27 kJ mol−1.

Published
1992
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