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Main Title: Thermodynamic Speed of Sound Data for Liquid and Supercritical Alcohols
Author(s): Javed, Muhammad Ali
Baumhögger, Elmar
Vrabec, Jadran
Type: Article
Language Code: en
Abstract: Because of their caloric and thermal nature, speed of sound data are vital for the development of fundamental Helmholtz energy equations of state for fluids. The present work reports such data for methanol, 1-propanol, 2-propanol, and 1-butanol along seven isotherms in the temperature range from 220 to 500 K and a pressure of up to 125 MPa. The overall expanded uncertainty varies between 0.07% and 0.11% with a confidence level of 95%. The employed experiment is based on a double path length pulse-echo method with a single piezoelectric quartz crystal of 8 MHz, which is placed between two reflectors at different path lengths. Measured speed of sound data for the four alcohols are fitted with double polynomial equations and compared with literature sources.
Issue Date: 28-Feb-2019
Date Available: 11-Apr-2019
DDC Class: 660 Chemische Verfahrenstechnik
Journal Title: Journal of Chemical & Engineering Data
Publisher: American Chemical Society
Publisher Place: Columbus, Ohio
Volume: 64
Issue: 3
Publisher DOI: 10.1021/acs.jced.8b00938
Page Start: 1035
Page End: 1044
EISSN: 1520-5134
ISSN: 0021-9568
Appears in Collections:FG Thermodynamik und Thermische Verfahrenstechnik » Publications

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