| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 214947 | The Journal of Chemical Thermodynamics | 2016 | 8 Pages |
•Speed of sound measurements were made in aliphatic alcohols and alkanediols.•Speeds of sound were measured in a wide temperature and pressure range.•A pulse-echo method with a double path type sensor operating at 8 MHz was employed.•A double polynomial equation was used to fit the experimental speed of sound data.•The accurate results were compared with available literature sources.
Speeds of sound have been measured in three saturated aliphatic alcohols (propan-2-ol, butan-2-ol, and 2-methylpropan-1-ol) and three alkanediols (ethane-1,2-diol, propane-1,2- and -1,3-diol) in the temperature range from (253.15 to 353.15) K and pressures up to 30 MPa by use of a pulse-echo method with a double path type sensor operating at 8 MHz. The expanded overall uncertainties (k = 2) in the speed of sound measurements are estimated to be 0.013% for propan-2-ol, 0.019% for butan-2-ol, 0.01% for 2-methylpropan-1-ol, 0.009% for ethane-1,2-diol, 0.02% for propane-1,2-diol, and 0.07% for propane-1,3-diol. Experimental speeds of sound data were correlated with the temperature and pressure with an empirical double polynomial equation. Our results were also compared with the available literature data and a satisfactory agreement was found.
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