Trapp mixture

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

The Trapp mixture is a specific mixture of organic solvents for chemical reactions taking place at very low temperatures. The mixture THF:diethyl ether: pentane (4:4:1) is a liquid down to -110 °C and the same (4:1:1) mixture is liquid down to −120 °C. Note that pure THF melts at −108.4 °C.

• Online source

1. Köbrich, G.; Trapp, H. Chem. Ber. 1966,99, 680

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