Abstract
In this work, for the first time, a new class of deep eutectic solvents has been synthesized and applied for the efficient extraction of pertechnetate anion from imitators of real media from which pertechnetate removal is needed: high-level waste imitator and sea water imitator. Diphenyl guanidine was studied as a hydrogen bond acceptor, which exhibits a high extraction ability for pertechnetate anion separation. Natural fatty acid and natural terpene were studied as hydrogen bond donors. The structure, properties, viscosity and stability of the obtained eutectic solvents were studied. Also, the radiation resistance of the obtained solvents was studied from the point of view of distribution ratio saving. It was shown that the new class of solvents has a high radiation resistance and efficiently extracts pertechnetate anion even from acidic media in high-temperature extraction process and can be the first step platform for solving technological and radiation safety problems.
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