... 1000-5000 Properties:PASP(Sodium of Polyaspartic Acid) is a soluble polymer. It is a new generation of green water treatment agent, ... situation of high hardness, high alkaline, high pH value and high concentration index. When built with PBTCA, the synergism is obvious ... used in agricultural as nutrient absorption intensifier to improve the production of vegetable, melon and fruit, and flowers. When used ...