Activated Carbon Media 1 decoloration 90-100% 2 0.15% methylene blue 12-14 3 PH 5- ... 7-9 4 quick large absorption Activated Carbon Media for Water Purification Appearance: black powder, odorless, tasteless, not dissolved in general, solvents ... sugar as well as the pigment removal, purification and refining of citric acid, cystine, oil, chemical products. Activated Carbon Media for Water Purification