Abstract
MOLYBDENUM disulphide has until recently been reported as having a melting point1 of 1,185° C. In 1956, however, Zelikman and Belyaevskaya2 reported that samples of molybdenum sulphide did not melt at temperatures up to 1,350°, and only those which had been heated to temperatures in excess of 1,650° C. showed any (microscopic) signs of melting. The purpose of the present communication is to report experiments made in connexion with the preparation of clean molybdenum disulphide surfaces, which are relevant to the question of the melting point of the material.
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