I want to synthesis sodium polyacrylate 40% solution in water in order to use it as dispersing agent for CaCO3. i have acrylic acid, NaOH and potassium persulfate as initiator. any one can help me in the order of adding materials to the flask, reaction temperature, time and if it is possible to do this reaction at room temperature after initiators are turning into free radicals at 60°C?