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Thermogravimetric Analysis of Copper(II) soaps Derived from Azadirecta indica (Neem) and Pongamia pinnata (Karanj) Non-Edible Oils

  • Rashmi Sharma , Lal Chand Heda and Anju Joram
Published/Copyright: May 18, 2013
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Tenside Surfactants Detergents
From the journal Tenside Surfactants Detergents Volume 50 Issue 1

Abstract

Copper(II) soaps derived from Neem (CN) and Pongamia (CP) non-edible oils have been thermally analyzed using TGA technique to determine their energy of activation. IR and NMR spectroscopic studies have been also done earlier. The copper soaps derived from these oils show a single step thermal degradation corresponding to saturated, monounsaturated and polyunsaturated fatty acid components of the non-edible oils. Various equations like Coats-Redfern, Horowitz-Metzger, Broido equations were applied to evaluate the energy of activation. The values of activation energy are observed to be in the following order for all these soaps: CN > CP. CP is observed to be more stable than CN due to its higher activation energy.

Kurzfassung

Kupfer(II)seifen, die man aus den ungenieβbaren Ölen des Neembaums (Azadirecta indica, CN) und des Karanjabaums (Pongamia pinnata, CP) gewinnen kann, wurden mit der Thermogravimetrie analysiert, um ihre Aktvierungsenergie zu bestimmen. IR- und NMR-spektrometrische Untersuchungen wurden bereits früher durchgeführt. Die Kupferseifen aus diesen Ölen zeigen eine einstufige thermische Zersetzung, entsprechend den gesättigten, einfach ungesättigten und den mehrfach ungesättigten Fettsäurekomponenten der ungenieβbaren Öle. Für die Berechnung der Aktivierungsenergie wurden verschiedene Gleichungen wie die Coats-Redfern-, die Horowitz-Metzger- und die Broido-Gleichung verwendet. Für die erhaltenen Aktivierungsenergien aller Seifen gilt CN > CP. Dabei ist CP aufgrund der höheren Aktivierungsenergie stabiler als CN.

Keywords: Copper Neem soap; copper pongamia soap; thermogravimetric analysis (TGA); energy of activation
Schlüsselwörter: Kupferseife aus Neembaumöl; Kupferseife aus Karanjabaumsöl; thermogravimetrische Analyse (TGA); Aktivierungsenergie
∗ Correspondence to Dr. Rashmi Sharma, “Abhilasha”, Sohan Nagar, Sendra Road, Beawar (Raj.), 305901, India, E-Mail:

Dr. Rashmi Sharma was born in May 1969. She completed her post graduation in 1990. Curently she is working as Assistant Professor in S. D. Govt. College, Beawar. Her research interests are surfactants and olio-chemicalls.

Dr. L. C. Heda was born in July 1959. He completed his post graduation in 1980. Curently He is working as Head of the Department in Govt. College, Pali. His research interests are surfactants and hetrocycles.

Joram Anju was born in July 1983. She did her post graduation in 2006. Curently she is working as Research Scholar in S. D. Govt. College, Beawar. Her research interests are surfactants and olio-chemicalls.

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Received: 2012-01-22
Published Online: 2013-05-18
Published in Print: 2013-01-01

© 2013, Carl Hanser Verlag, München

Articles in the same Issue

  1. Contents/Inhalt
  2. Contents
  3. Editorial
  4. Review of the years 2011/2012
  5. Abstracts
  6. Abstracts
  7. Application
  8. Synthesis and Performance of Polyoxy-ethylene Ester Quaternary Ammonium Salt
  9. Double-Hydrophilic Block Copolymer as an Effective and Environmentally Friendly Inhibitor for Phosphate and Carbonate Scales in Cooling Water Systems
  10. Textile Cleaning
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  14. Biodegradation of Alcohol Ethoxylates by Bacterial Consortium from Industrial Wastewater
  15. Physical Chemistry
  16. Thermogravimetric Analysis of Copper(II) soaps Derived from Azadirecta indica (Neem) and Pongamia pinnata (Karanj) Non-Edible Oils
  17. Release and Rheological Properties of Topical Drugs
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  20. Conference and Meeting Report
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https://doi.org/10.3139/113.110230
Keywords for this article
Copper Neem soap; copper pongamia soap; thermogravimetric analysis (TGA); energy of activation

Articles in the same Issue

  1. Contents/Inhalt
  2. Contents
  3. Editorial
  4. Review of the years 2011/2012
  5. Abstracts
  6. Abstracts
  7. Application
  8. Synthesis and Performance of Polyoxy-ethylene Ester Quaternary Ammonium Salt
  9. Double-Hydrophilic Block Copolymer as an Effective and Environmentally Friendly Inhibitor for Phosphate and Carbonate Scales in Cooling Water Systems
  10. Textile Cleaning
  11. Cleanability of Textile Materials in Liquid CO2
  12. The PVP/VI Copolymer Dye Transfer Inhibition Agent During the Washing of the Polyester Fabric
  13. Environmental Chemistry
  14. Biodegradation of Alcohol Ethoxylates by Bacterial Consortium from Industrial Wastewater
  15. Physical Chemistry
  16. Thermogravimetric Analysis of Copper(II) soaps Derived from Azadirecta indica (Neem) and Pongamia pinnata (Karanj) Non-Edible Oils
  17. Release and Rheological Properties of Topical Drugs
  18. Synthesis
  19. Synthesis and Interfacial Activity of Novel Sulfobetaines in Aqueous Solutions
  20. Conference and Meeting Report
  21. Liquid Foams, New Approaches in Raw Materials, Sustainability and Product Safety, Forum for Innovations
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