... material: Less than 0.3% of Ferric Sulphate to be insoluble in water.- Acidity : pH of 1% water ... solution shall be 2-3 1. It is new iron salt inorganic ... 10 folds dosage. 4, stable, the solution can be reserved in long time, no deposit and degrade or block ... and BOD,heavy metal6, nontoxic and harmless, it has not aluminum polltion, is green agent7, The application PH is ...