It is then oxidized to anthraquinone by means of sodium dichromate and sulphuric acid in leaden vats, steam heated so that the mixture can be brought to the boil.
2
Oxidation of Alcohols Alcohols are oxidized by warming with an oxidizing agent, such as acidified potassium dichromate (VI) solution.
3
Sulfur dioxide is also given off and this will turn potassium dichromate paper from orange to blue-green.