Polyethylene Glycol 200 R1

Polyethylene Glycol 200 R1 Macrogol 200 R1

Place 500 mL of polyethylene glycol 200 in a 1000-mL round- bottomed flask. Using a rotary evaporator remove any volatile components by applying a temperature of 60° and a pressure of 1.5 to 2.5 kPa for 6 hours.