Vacuum pressure and water boiling temperature
Vacuum pressure and water boiling/sublimation temperature. Sublimation occurs when pressure is reduced at temperatures below water's freezing point.
Water Boiling Temperature (oF) |
Vacuum Pressure | |
---|---|---|
(in Hg) | Microns | |
212 | 0 | 762000 |
192 | 10.24 | 500000 |
152 | 22.05 | 200000 |
125 | 25.98 | 100000 |
101 | 27.95 | 50000 |
84 | 28.74 | 30000 |
72 | 29.13 | 20000 |
63 | 29.33 | 15000 |
52 | 29.53 | 10000 |
39 | 29.69 | 6000 |
29 | 29.76 | 4000 |
15 | 29.84 | 2000 |
1 | 29.88 | 1000 |
-12 | 29.90 | 500 |
-21 | 29.91 | 300 |
-28 | 29.91 | 200 |
-33 | 29.92 | 150 |
-40 | 29.92 | 100 |
-50 | 29.92 | 50 |
- | 29.921 | 0 |
- 0% vacuum = 760 torr = 14.7 psia = 29.92 in mercury abs = 101.4 kPa abs
- 50% vacuum = 380 torr = 7.3 psia = 15 in mercury abs = 50.8 kPa abs
- 99.9% vacuum = 1 torr = 0.01934 psia = 0.03937 in mercury abs = 1.3 kPa abs