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In view of the importance of the melting point of a chemical substance, both as a means of identification and control of purity, and because of the widely varying methods of carrying out this determination, the whole subject has been carefully and thoroughly reviewed and discussed in this bulletin. From a survey of the existing methods and the results obtained by these methods, the author has devised an apparatus and technic which is simple and inexpensive, yet accurate. The method was thoroughly tested and found to be satisfactory, as shown by the many results tabulated in the bulletin. Menge recommends the apparatus and method for adoption as the official method for the United States Pharmacopeia.
A Study of Melting-Point Determinations. With Special Reference to the Melting-Point Requirements of the U. S. Pharmacopeia.. JAMA. 1911;LVI(2):149. doi:10.1001/jama.1911.02560020065042