NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Characterization of Potential Thermal Degradation Products From the Reactions of Aqueous Ethylene Glycol and Propylene Glycol Solutions With Copper Metal.

Published

Author(s)

Walter J. Rossiter Jr, P W. Brown, K G. Gaulk

Abstract

Aqueous solutions of ethylene glycol and propylene glycol are cornmon heat transfer fluids for solar collector systems. Thermal oxidative degradation produces organic acids which, in turn, generate copper salts through reaction with copper containment systems. Copper (II) salts of the organic acids which may be generated as the result of the degradation of the ethylene glycol and propylene glycol were prepared by reacting aqueous solutions of the acids with copper (II) carbonate. Infrared spectra and X-ray diffraction peak spacings and intensities are presented for the salts. These spectra may be useful in analyzing the service performance of heat transfer fluids used in solar collector systems.
Citation
Solar Energy Materials
Publisher Info
, -1
Pub Type
Book Chapters

Download Paper

Local Download

Keywords

ethylene glycol, propylene glycol, copper, heat transfer fluids, thermal degradaton, solar collectors, solar system, thermal oxidative degradation, containment, infrared spectra, experiments, x-ray diffraction, thermal oxidation, salts, FT-IR

Citation

Rossiter, W. , Brown, P. and Gaulk, K. (1987), Characterization of Potential Thermal Degradation Products From the Reactions of Aqueous Ethylene Glycol and Propylene Glycol Solutions With Copper Metal., Solar Energy Materials, , -1, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=916900 (Accessed October 13, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created January 1, 1987, Updated February 17, 2017
Was this page helpful?