Nitric Acid → 1-Nitroanthraquinone

Participants

Reaction Steps

208 g of anthraquinone in 969 g of 97.5% nitric acid (mole ratio 15:1) are heated to 35° for 2 hours with stirring. The reaction is stopped by the addition of 103 ml of water. After removal of 265 g of 99% nitric acid by distillation (crystallisation acid 81%, γHNO3 = 0.520), the precipitated product is freed from nitric acid and dried and distilled at 30 Torr with head temperatures of 250° to 300°, together with about 800 g of silicone oil. The yield of 99.2% 1-nitroanthraquinone is 153 g (60% of the theoretical amount).

Provenance & Evidence