Nitric Acid → 1-Nitroanthraquinone

Participants

Reaction Conditions

Reaction Steps

A mixture of 208 g of anthraquinone and 382 g of 99% nitric acid (mole ratio 6:1) is heated to 75° C for 10 hours with stirring and then slowly cooled to -10° (γHNO3 = 0.695). The precipitated product is filtered off, washed with a little 75% nitric acid, freed from nitric acid adhering to it by evaporation under vacuum, and fractionally distilled at 6 Torr and 267° head temperature. 151.5 g of 98.5% pure 1-nitroanthraquinone are obtained (59% of the theoretical amount).

Provenance & Evidence