... :50%min 3, Competitive price ,high quality,best services Calcium aluminate1. Descriptionamorphous calcium aluminate, non crystalline calcium aluminate, non crystallized calcium aluminate, amorphous C12A7, ACA ... O 3 ) %≥5550Active calcium (CaO) %8-1410-15Ferric oxide (Fe 2 O 3 ) % ≤0.51.5 Factory selling Calcium aluminate for water treatment