Synthesis of Alizarin Red S

Preparation of Alizarin Red S 25 g of alizarin and 150 g of oleum containing 20% of SO3 were ... Read more

Synthesis of taurine

Preparation of taurine An equimolar mixture of monoethanolamine and 96% sulfuric acid is heated ... Read more

Preparation of 2-methyl-5-nitrobenzene-1-sulfonic acid 100 grams of p-nitrotoluene are ... Read more

Preparation of 2-nitrophenol-4,6-disulfonic acid 94 grams of pure phenol is melted at 50°, and ... Read more

Preparation of 4-amino-3-hydroxy-1-naphthalenesulfonic acid 100 g of 2-naphhol are dissolved ... Read more

Preparation of 4-chloro-3-nitrobenzenesulfonic acid The reaction is carried out in a ... Read more

Preparation of 2-chloro-5-nitrobenzenesulfonic acid To a mixture of 100 grams of ... Read more

Preparation of camphorsulfonic acid 45 g of camphor are finely powdered and added to a ... Read more

Preparation of 2-toluenesulfonyl chloride 100 g of pure toluene are slowly run into 500 g of ... Read more

Preparation of 4-toluenesulfonyl chloride 130 g pure toluene are heated with 450 g concentrated ... Read more

Preparation of sodium anthraquinone-2-sulfonate 100 g dry, finely divided anthraquinone are ... Read more

Preparation of disodium 4,4′-dinitrostilbene-2,2′-disulfonate 375 g oleum (25% ... Read more

Preparation of 4-tert-butylbenzenesulfonic acid To 40 grams of tert-butylbenzene in a ... Read more

Preparation of sodium benzenesulfonate 60 ml of benzene and 60 ml of concentrated sulfuric acid ... Read more

Preparation of potassium ethyl sulfate To 80 ml of ethyl alcohol 20 ml of concentrated ... Read more