Record Display for the EPA National Library Catalog


Main Title Degreasing Metal Parts with Liquid Carbon Dioxide.
Author Hill, L. ; Darvin, C. H. ;
CORP Author Research Triangle Inst., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
Publisher 1996
Year Published 1996
Report Number EPA-R-818419; EPA/600/A-96/035;
Stock Number PB96-169321
Additional Subjects Degreasing ; Carbon dioxide ; Solvents ; Pollution control ; Metal products ; Military air facilities ; Aircraft maintenance ; Demonstration projects ; Gears ; Feasibility ; Robins Air Force Base(Georgia) ; Trichloroethane
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB96-169321 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 6p
The paper summarizes the demonstration of an innovative parts cleaning technology with a more benign process to replace environmentally damaging chemicals. The process has the potential to replace 1,1,1-trichloroethane (TCA), an ozone-depleting compound, a hazardous air pollutant, and 1 of the 17 chemicals on EPA's 33/50 list of priority pollutants. Carbon dioxide (CO2), in a liquid or supercritical form, has significant surface cleaning properties. Liquid CO2 (LC02) is distinct from supercritical CO2 because it can be maintained at lower pressures and temperatures than supercritical. Both have the advantage of permeating tiny holes (e.g., a gas) and have good solvency for many oils, greases, and other contaminants.