Related Resources: materials
Critical Temperature and Melting Point for Common Engineering Materials
Critical Temperature and Melting Point for Common Engineering Materials
Critical temperature is the temperature of a gas or vapor in its critical state. Above this temperature, a gas cannot be liquefied by pressure alone.
| Element |
Melting Point °C
|
Critical Temp °C
|
Phase at Critical T
|
| Aluminium |
660
|
1124
|
Liquid
|
| Americium |
1176
|
896
|
Solid
|
| Antimony |
631
|
455
|
Solid
|
| Arsenic |
84
|
270
|
Liquid
|
| Barium |
729
|
574
|
Solid
|
| Beryllium |
1289
|
1102
|
Solid
|
| Cadmium |
321
|
226
|
Solid
|
| Caesium |
29
|
114
|
Liquid
|
| Calcium |
847
|
538
|
Solid
|
| Californium |
900
|
1402
|
Liquid
|
| Cerium |
798
|
1602
|
Liquid
|
| Chromium |
1863
|
1220
|
Solid
|
| Cobalt |
1492
|
1418
|
Solid
|
| Copper |
1084
|
1146
|
Liquid
|
| Dysprosium |
1412
|
1025
|
Solid
|
| Erbium |
1529
|
1139
|
Solid
|
| Europium |
822
|
547
|
Solid
|
| Gadolinium |
1312
|
1450
|
Liquid
|
| Gallium |
30
|
954
|
Liquid
|
| Germanium |
938
|
1260
|
Liquid
|
| Gold |
1064
|
1291
|
Liquid
|
| Hafnium |
2231
|
2255
|
Liquid
|
| Holmium |
1474
|
1146
|
Solid
|
| indium |
157
|
836
|
Liquid
|
| Iridium |
2447
|
1199
|
Solid
|
| Iron |
1538
|
1253
|
Solid
|
| Lanthanum |
918
|
1586
|
Liquid
|
| Lead |
328
|
622
|
Liquid
|
| Lithium |
181
|
465
|
Liquid
|
| Lutetium |
1663
|
1517
|
Solid
|
| Magnesium |
651
|
386
|
Solid
|
| Manganese |
1246
|
887
|
Solid
|
| Mercury |
-39
|
22
|
Liquid
|
| Molybdenum |
2623
|
2319
|
Solid
|
| Neodymium |
1021
|
1219
|
Liquid
|
| Neptunium |
639
|
1781
|
Liquid
|
| Nickel |
1455
|
1409
|
Solid
|
| Niobium |
2468
|
2501
|
Liquid
|
| Osmium |
3033
|
2721
|
Solid
|
| Palladium |
1555
|
1348
|
Solid
|
| Platinum |
1769
|
1800
|
Liquid
|
| Plutonium |
640
|
1506
|
Liquid
|
| Potassium |
64
|
165
|
Liquid
|
| Praseodymium |
931
|
1381
|
Liquid
|
| Protactinium |
1572
|
2636
|
Liquid
|
| Rhenium |
3186
|
2817
|
Solid
|
| Rhodium |
1963
|
1874
|
Solid
|
| Rubidium |
39
|
129
|
Liquid
|
| Substance |
Vapour Pressure (Pa)
|
Temperature (°C)
|
| Acetaldehyde |
98.7
|
20
|
| Acetone |
24640
|
20
|
| Butane |
22
|
20
|
| Carbonyl sulphide |
1255
|
25
|
| Ethanol |
5.83
|
20
|
| Ethylene glycol |
0.5
|
20
|
| Formaldehyde |
435.7
|
20
|
| Freon 113 |
37.9
|
20
|
| Methanol |
12800
|
20
|
| Methyl isobutyl ketone |
26.48
|
25
|
| Nitrogen (N2) |
63200
|
20
|
| Oxygen (O2) |
54200
|
20
|
| Propane |
2200
|
55
|
| Propanol |
2.4
|
20
|
| Tungsten |
0.1
|
3203
|
| Water (H2O) |
2.3
|
20
|
| Xenon difluoride |
0.6
|
25
|
| Substance |
Vapour Pressure (Pa)
|
Melting point (°C)
|
| Apiezon Oil J |
0.13 at 200°C
1.3 x 10-4 at 20°C |
-
|
| Apiezon Oil K |
0.13 at 300°C
1.3 x 10-7 to 10-8 at 20°C |
-
|
| Apiezon Grease L |
0.13 at 100°C
1.3 x 10-7 to 10-9 at 20°C |
47
|
| Apiezon Grease M |
0.13 at 200°C
1.3 x 10-5 to 10-6 at 20°C |
44
|
| Apiezon Grease N |
0.13 at 200°C
1.3 x 10-6 to 10-7 at 20°C |
43
|
| Apiezon Grease T |
About 1.3 x 10-6 at 20°C
|
125
|
| High Vacuum Grease Dow Corning |
< 1 x 10-4 at 20°C
|
-
|
| Nylon |
~ 1 x 10-3 at 20°C
|
-
|
| Teflon |
< 1 x 10-4 at 20°C
|
-
|
| Viton |
1 x 10-6 at 20°C
|
-
|
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