Dissolve 38 g of sodium hydroxide in 236 mL of water, cool down to 10°C. Then add 200 g of crushed ice and place the beaker in an ice bath. Dissolve 94 g of succinimide in the solution, with vigorous stirring. Then with vigorous stirring add 50 mL of bromine, leave it to stir for 10 minutes. Filter and wash the product with small amounts of cold water.
Place the beaker in an ice bath with stirring
Bromine was added
Filter and wash with cold water