Table 4.
Ice point and triple point vapor pressures comparisons
| Source | Reference | Ice point, 0° | Triple point, 0.01 °C | ||||
|---|---|---|---|---|---|---|---|
| Vapor pressurea | Difference Other-Eq (17) |
Vapor pressure | Difference Other-Eq (17) |
||||
| Eq (7) | pascal 610.75 | pascal | ppm | pascal 611.20 | pascal | ppm | |
| Experimental Measurements | |||||||
| Thiesen and Scheel (1900) | [41] | 610.46 | −0.29 | − 480 | |||
| Scheel and Heuse (1909) | [42] | 610.46 | −0.29 | − 480 | |||
| Scheel and Heuse (1910) | [28] | 610.11 | −0.64 | −1050 | |||
| Prytz (1931) | [43] | 611.52 | + 0.32 | + 530 | |||
| Douslin (1970) | [40] | 611.5 | + 0.75 | + 1200 | 612.2 | + 1.0 | + 1640 |
| Steam Tables | |||||||
| IST (1963) | [44] | 610.8 | + 0.05 | + 80 | 611.2 | 0.0 | 0 |
| NEL (1964) | [44] | 610.7 | −0.05 | − 80 | 611.2 | 0.0 | 0 |
| IFC (1967) | [48] | 610.8 | + 0.05 | + 80 | 611.2 | 0.0 | 0 |
| Keenan, Keyes, et al. (1969) | [16] | 610.8 | + 0.05 | + 80 | 611.3 | + 0.1 | + 160 |
a
Metastable state; vapor pressure with respect to supercooled water.