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OLS Field Name OLS Field Data
Main Title Thermodynamic Properties of Two Gaseous Halogenated Ethers from Speed-of-Sound Measurements: Difluoromethoxy-Difluoromethane and 2-Difluoromethoxy- 1,1,1-Trifluoroethane.
Author Gillis, K. A. ;
CORP Author National Inst. of Standards and Technology (CSTL), Gaithersburg, MD. Thermophysics Div.;Department of the Navy, Washington, DC.;Environmental Protection Agency, Washington, DC.
Publisher 1994
Year Published 1994
Report Number N000249OMP33493 ;DW13935108-01-0;
Stock Number PB96-102413
Additional Subjects Thermodynamic properties ; Halohydrocarbons ; Ethers ; Gases ; Acoustic velocity ; Specific heat ; Ideal gas ; Virial coefficients ; Intermolecular forces ; Reprints ; Difluoromethoxy-difluoromethane ; 2-Difluoromethoxy- 1-1-1-trifluoroethane
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NTIS  PB96-102413 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 02/29/1996
Collation 27p
Abstract The authors present measurements of the speed of sound in gaseous difluoromethoxy-difluoromethane (CHF2-O-CHF2) and 2-difluoromethoxy- 1,1,1-trifluoroethane (CF3-CH2-O-CHF2). These measurements were performed in an all-metal apparatus between 255 and 384 K. The authors have obtained ideal-gas heat capacities and second acoustic virial coefficients from analysis of these measurements. Two methods of correlating the second acoustic virial coefficients, a squarewell model of the intermolecular interaction and a function due to Pitzer and Curl, are presented.
Supplementary Notes Sponsored by Department of the Navy, Washington, DC. and Environmental Protection Agency, Washington, DC.
Availability Notes Pub. in International Jnl. of Thermophysics 15, n5 p821-847 Sep 94.
NTIS Title Notes Final rept.
Title Annotations Reprint: Thermodynamic Properties of Two Gaseous Halogenated Ethers from Speed-of-Sound Measurements: Difluoromethoxy-Difluoromethane and 2-Difluoromethoxy- 1,1,1-Trifluoroethane.
Category Codes 46A; 46; 99F
NTIS Prices Not available NTIS
Primary Description NBS-420
Document Type NT
Cataloging Source NTIS/MT
Control Number 603800140
Origin NTIS
Type CAT