nonionic polyacrylamide for chemical sludge dewatering in russia
Polymerization of polyacrylamide. If heated above the melting point, acrylamide may polymerize. Caution, the reaction is exothermic. Acrylamide may be polymerized in water at concentrations from 8- 20%, using AIBN, peroxide, or redox catalysts. Reaction times may range from 4- 8 hrs. Temperatures from 20 to 50 deg C are common.
7. Store the resulting polyacrylamide for subsequent experiments. In anticipation of Experiment #3, place 100 ml of the polyacrylamide solution recovered at the end of step (6) in a 250 ml Erlenmeyer flask, add 112 ml of 10% wt/vol NaOH s olution in water (provided by TA). Stopper and label “Sodium Polyacrlyate for Exp# 3” with your Team #).
