Abstract:POLISHING METAL SECTIONS 855 equal to zero. On the other hand, the failure of Moissan' and of Ruff' to obtain any evidence for the existence of free NH, a t very low temperatures is strong evidence to the contrary. Furthermore, it has been shown by the writer3 that the alkali and alkaline-earth metals exist in mercury, even in dilute solution, not in the form of single atoms, but in that of compounds of the general formula hlHg,', containing only one atom of the amalgamated metal to the molecule. Ammonium amal… Show more
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