Record Display for the EPA National Library Catalog


Main Title In Situ Analysis of Corrosive and Passive Surfaces by Laser-Excited Raman Spectroscopy.
Author Brown, C. W. ;
CORP Author Rhode Island Univ., Kingston. Dept. of Chemistry.;Municipal Environmental Research Lab., Cincinnati, OH.
Year Published 1984
Report Number EPA-CR80-729101; EPA-600/2-84-133;
Stock Number PB84-229756
Additional Subjects Raman spectroscopy ; Corrosion ; Water pipes ; Surfaces ; Thermodynamic properties ; Chemical analysis ; Laboratory equipment ; Field tests ; Infrared spectroscopy ; Laser spectroscopy ; Zinc carbonates
Library Call Number Additional Info Location Last
NTIS  PB84-229756 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 145p
From both laboratory and field investigations it has been found that protective films can be formed or deposited on lead and asbestos-cement pipes. The purpose of the present project was to determine the chemical and/or crystalographic composition of surface films on these pipes. Both laboratory and field samples of lead were investigated by Raman and infrared spectroscopy. A number of laboratory samples were investigated in situ using laser-excited Raman spectroscopy. A limited number of field samples of asbestos-cement pipes were studied using infrared spectroscopy. In addition, surface films from field samples of galvanized iron pipes were measured. Variations in the chemical composition of asbestos-cement pipes make it impossible to identify the composition of surface films using spectroscopic techniques; however, surface films on field samples of galvanized iron were identified as zinc carbonates using infrared spectroscopy.