TGA-FTIR study of the vapors released by triethylamine-acetic acid mixtures

Nhlapo, N.S. (Nontete Suzan); Focke, Walter Wilhelm; Vuorinen, Eino

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dc.contributor.author	Nhlapo, N.S. (Nontete Suzan)
dc.contributor.author	Focke, Walter Wilhelm
dc.contributor.author	Vuorinen, Eino
dc.date.accessioned	2012-10-05T14:02:03Z
dc.date.available	2012-10-05T14:02:03Z
dc.date.issued	2012-10
dc.description.abstract	Proprietary mixtures of amines and carboxylic acids are used as volatile corrosion inhibitors (VCIs) for the protection of iron and steel components against atmospheric corrosion. This study was focused on the nature of the vapors they release. VCI model compounds comprising mixtures of triethylamine and acetic acid were studied using thermogravimetric analysis coupled with Fourier-transform infrared spectroscopy (TGA–FTIR) at 50 ◦C. As vaporization progressed, the composition of the remaining liquid and the emitted vapor converged to a fixed amine content of ca. 27 mol%. This was just above the composition expected for the 1:3 amine to carboxylic acid complex. Mixtures close to this composition also featured the lowest volatility.	en
dc.description.librarian	ai2013
dc.description.sponsorship	The National Metrology Institute of South Africa (NMISA), the Institutional Research Development Programme (IRDP) of the National Research Foundation of South Africa, and Xyris Technology CC.	en
dc.description.uri	http://www.elsevier.com/locate/tca	en
dc.identifier.citation	Nontete Suzan Nhlapo, Walter W. Focke & Eino Vuorinen, TGA-FTIR study of the vapors released by triethylamine-acetic acid mixtures, Thermochimica Acta, vol. 565, pp. 113-119 (2012), doi: 10.1016/j.tca.2012.07.029.	en
dc.identifier.issn	0040-6031 (print)
dc.identifier.issn	1872-762X (online)
dc.identifier.other	10.1016/j.tca.2012.07.029
dc.identifier.uri	http://hdl.handle.net/2263/20041
dc.language.iso	en	en
dc.publisher	Elsevier	en
dc.rights	© 2012 Elsevier. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Thermochimica Acta. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Thermochimica Acta, vol 546, October 2012, doi: 10.1016/j.tca.2012.07.029.	en
dc.subject	TGA–FTIR	en
dc.subject	VCIs	en
dc.subject.lcsh	Amines	en
dc.subject.lcsh	Carboxylic acids	en
dc.subject.lcsh	Corrosion and anti-corrosives	en
dc.subject.lcsh	Vapors	en
dc.subject.lcsh	Infrared spectroscopy	en
dc.subject.lcsh	Thermogravimetry	en
dc.title	TGA-FTIR study of the vapors released by triethylamine-acetic acid mixtures	en
dc.type	Postprint Article	en