POLICE/SHERIFF'S DEPARTMENT GENERAL ORDER

Tight/optimal effective pH range of 5.5 – 7.5. And a pH over 9.0 could result in increased dissolved aluminum. Ferric Sulfate - Fe2(SO4)3 • 9 H2O. Ferric Chloride - FeCl3 • 6 H2O. Ferric chloride (FeCl3) is the most common iron salt used to achieve coagulation. Broader effective pH range of 5.0 – 8.5. ................
................