I08 Table 214. 



^ MELTING POINTS OF THE CHEMICAL ELEMENTS. 



The metals in heavier type are often used as standards. 



The melting points are reduced as far as possible to a common (thermodynamic) temperature 

 scale. This scale is defined in terms of Wien's law, with C2 taken as 14,350, and on which the 

 melting point of platinum is 1755° C (Nernst and Wartenburg, 1751; Waidner and Burgess, 

 1753; Day and Sosman, 1755; Holborn and Valentiner, 1770; see C. R. 148, p. 1177, 1909). 

 Above 1100° C, the temperatures are expressed to the nearest 5° C. Temperatures above the 

 platinum point may be uncertain by over 50" C. 



Smithsonian Tables. 



