Some observers have suggested that as cognitive psychology became a movement during the 1970s, the intricacies of the phenomena and processes it examined meant it also began to lose cohesion as a field of study.
Iron has a melting point of 1535.0 degrees Celsius or 2795.0 degrees Fahrenheit. It has a boiling point of 2750.0 degrees Celsius or 4982.0 degrees Fahrenheit. Continue Reading.
Tungsten's melting point of 3422 Â°C is the highest of all metals and second only to carbon (3550 Â°C) among the elements. This is why tungsten is used in rocket nozzles and reactor linings. There are refractory ceramics and alloys that have higher melting points, notably $\ce{Ta4HfC5}$ with a melting point of 4215 Â°C, hafnium carbide at 3900 Â°C and tantalum carbide at 3800 Â°C. Carbon cannot be used to hold molten tungsten because they will react to form tungsten carbide.