... powder at 210οC.It carbonates to black power at 210οC without oxygen.It could ... four series,e.g.,non-ion,cation,anion and mixed cation & anion.Usage:It is an ... chemical, papermaking,sugarrefining,pharmaceutical,environment protection,construction materials and agriculture.Main Technical Indexes:Powder ItemsIndexNo-ionCationAnionAppearanceWhite or ... -2Hydrolysis rate%≤5----5-35 high quality polyacrylamide