Set up for a reflux apparatus. Pour 150 mL of methanol, 45 g of salicylic acid and slowly with mixing 30 mL of sulfuric acid. Start heating the mixture at 95°C for 4h. Remove 70 mL of the methanol with a rotary evaporator, pour the mixture into a separatory funnel and wash it with 100 mL of ice-cold water. Wash the solution with 100 mL of 20% sodium carbonate solution and collect the bottom layer. Dry it with a drying agent and distill it at 224°C.
Starting to reflux the solution
The upper layer contains the product
Removing the upper aqueous layer
Washing with the sodium carbonate solution
Distillation of the crude methyl salicylate
The distillation residue
The pure methyl salicylate distillate