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The acoustical and physical features of water, propylene glycol, and polyethylene glycol at fixed concentrations of the propylene glycol, and increase the polyethylene glycol at temperature 37°C±1°C
| Number of sample | Water | Propylene glycol | Polyethylene glycol | Density (g/ml) | Speed of sound (m/s) | Viscosity (mPas) |
|---|---|---|---|---|---|---|
| 1 | 100 | 0 | 0 | 0.998 | 1508 | 0.89 |
| 2 | 90 | 5 | 5 | 1.01 | 1513 | 2.6 |
| 3 | 85 | 5 | 10 | 1.02 | 1544 | 4.8 |
| 4 | 80 | 5 | 15 | 1.03 | 1570 | 7.1 |
| 5 | 70 | 5 | 25 | 1.04 | 1595 | 9.3 |
| 6 | 60 | 5 | 35 | 1.06 | 1645 | 11.5 |
| 7 | 50 | 5 | 45 | 1.08 | 1698 | 14.8 |
