Record Display for the EPA National Library Catalog


Main Title Mechanism of SO2 and H2SO4 aerosol zinc corrosion /
Author Harker, Alan Butler. ; Mansfeld, Florian B. ; Strauss, Dennis R. ; Landis, Dwight D.
CORP Author Rockwell International, Thousand Oaks, CA. Science Center.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Environmental Sciences Research Laboratory,
Year Published 1980
Report Number EPA 600/3-80/018; EPA-68-02-2944
Stock Number PB80-167018
OCLC Number 40308075
Subjects Zinc--Corrosion ; Corrosion and anti-corrosives
Additional Subjects Air pollution ; Sulfur dioxide ; Aerosols ; Sulfuric acid ; Corrosion mechanisms ; Zinc ; Surface chemistry ; Monitoring ; Laboratory equipment ; Chemical reactions
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  EPA 600/3-80/018 Region 1 Library/Boston,MA 05/25/2016
EJED  EPA 600/3-80/018 OCSPP Chemical Library/Washington,DC 01/11/2002
ELBD ARCHIVE EPA 600-3-80-018 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ESAD  EPA 600-3-80-018 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB80-167018 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vii, 33 pages : illustrations ; 28 cm.
This study established the physical variables controlling the SO2 and H2SO4 induced corrosion of zinc. Relative humidity, temperature, air flow velocity, flow turbulence, aerosol size range, and pollutant concentration were controlled. Corrosion measurements were made through the use of an atmospheric corrosion monitor. The results showed that the principal factors controlling pollutant induced corrosion are relative humidity, the rate of pollutant flux to the surface, and the chemical form of the pollutant. SO2 was observed to induce a higher corrosion rate in the zinc than H2SO4 on a molecule for molecule basis. Flow dynamic measurements provided bulk and size detailed deposition velocities for two different accumulation mode H2SO4 aerosol size distributions as a function of frictional velocity, and a deposition velocity for SO2 gas. The overall results indicate that under most ambient conditions SO2 induced corrosion damage will dominate over H2SO4 effects.
"EPA-600/3-80-018." EPA contract no. 68-02-2944; EPA project officer: Fred Haynie. Includes bibliographical references (page 32).