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Type: Artigo de periódico
Title: Sequestration of Cu(II), Ni(II), and Co(II) by ethyleneimine immobilized on silica
Author: Arakaki, LNH
Alves, APM
da Silva, EC
Fonseca, MG
Oliveira, SF
Espinola, JGP
Airoldi, C
Abstract: Thermodynamic data on interaction of Cu(II), Ni(II), and Co(II) with silica modified with ethyleneimine are obtained by calorimetric titration. The amount of ethyleneimine anchored on silica surface was estimated to be 0.70 mmol g(-1). The enthalpies of binding Ni(II), Cu(II) and Co(II), are -3.59 +/- 0.001, -4.88 +/- 0.001, and -7.75 +/- 0.003 kJ mol(-1), respectively. (c) 2006 Elsevier B.V. All rights reserved.
Subject: chelating centers
silica gel
thermochemical data
Country: Holanda
Editor: Elsevier Science Bv
Citation: Thermochimica Acta. Elsevier Science Bv, v. 453, n. 1, n. 72, n. 74, 2007.
Rights: fechado
Identifier DOI: 10.1016/j.tca.2006.10.016
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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