1: nitric acid; sulfur trioxide; sulfuric acid / 7 h / 50 °C
2: chromium(VI) oxide; sulfuric acid / 7 h / 20 - 30 °C
3: water / 18.5 h / 105 - 120 °C
4: hydrogenchloride; iron / ethanol; water / 4 h / Reflux
View Scheme
1: chromium(VI) oxide; sulfuric acid / 7 h / 20 - 30 °C
2: water / 18.5 h / 105 - 120 °C
3: hydrogenchloride; iron / ethanol; water / 4 h / Reflux
View Scheme
