Abstract
The equilibrium data of the systems: picramide – 2,4-dinitrophenol and picric acid – picramide, have been obtained. The ternary eutectic of the system picric acid – picramide – dinitrophenol has also been obtained. Because of the low crystallization velocity of picramide, it appears that the problem of finding a picric acid mixture of the nature of Shellite, i.e., one containing picric acid and dinitrophenol, which should crystallize only slowly at room temperature, so that the cavity produced by contraction should be accessible to refilling and not cause cavitation, is solved by the use of a Shellite mixture of the following composition: 53.0% picric acid, 41.0% dinitrophenol, 6.0% picramide; this mixture melts at 77 °C.
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