Synonyms: Ethenesulfonicacid,sodiumsalt,homopolymer;POLY(VINYLSULFONIC ACID, SODIUM SALT);VINYL SULFONATE, SODIUM SALT POLYMER;POLY(VINYLSULFONIC ACID, SODIUM SALT), T ECH., 25 WT. % SOLUTION IN WATER;POLY(VINYLSULFONIC ACID) SODIUM SALT, 25% SOLN. IN WATER