Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Miscibility, solubility, and viscosity measurements for R-236ea with potential lubricants /
Author Kang, H. M. ; Pate, M. B.
Other Authors
Author Title of a Work
Pate, Michael B.
CORP Author Iowa State Univ., Ames.;Environmental Protection Agency, Research Triangle Park, NC. National Risk Management Research Lab.;Strategic Environmental Research and Development Program, Arlington, VA.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Air Pollution Prevention and Conrol Division.
Year Published 1999
Report Number EPA/600/R-99/009
Stock Number PB99-128027
Subjects Compressors--Lubrication systems. ; Refrigerants--Thermal properties.
Additional Subjects Refrigerants ; Lubricants ; Viscosity ; Density measurement ; Solubility ; Miscibility gap ; Mixtures ; Compatibility ; Physical properties ; Environmental chemical substitutes ; Air pollution abatement ; Hydrofluorocarbons ; R-236fa ; HFC-236fa
Library Call Number Additional Info Location Last
NTIS  PB99-128027 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 96 unnumbered pages ; 28 cm
The report gives results of miscibility, solubility, viscosity, and density measurements for refrigerant R-236fa and two potential lubricants. (The data are needed to determine the suitability of refrigerant/lubricant combinations for use in refrigeration systems.) The tested oils were pentaerythritol ester mixed-acid (ISO68), hereafter SW-68 manufactured by Castrol, and polyol ester mixed-acid (ISO46), hereafter Arctic-46 manufactured by Mobil. Miscibility was measured in a series of miniature test cells submerged in a constant temperature bath, precisely controlled over a temperature range of -50 to 90 C. Solubility, viscosity, and density data were also obtained for R-236fa mixed with the two oils for a refrigerant concentration of 0 to 40 wt % refrigerant over a temperature range of 30 to 100 C. This research shows that: (1) solubility, viscosity, and density are functions of temperature and concentration, (2) solubility increases with increasing temperature and refrigerant concentration (i.e., mass fraction of refrigerant). (3) viscosity decreases with increasing temperature and refrigerant concentration, and (4) density decreases with increasing temperature but increases with increasing refrigerant concentration. R-114 and naphthenic mineral oil were also tested.
"EPA/600/R-99/009." "Theodore G. Brna, project officer." Microfiche.