... PH 5-7 7-9 4 quick large absorption Activated Carbon Media for Water Purification Appearance: black powder, odorless, tasteless, not dissolved ... has excellent absorption capacity, but low impurity content.Uses: Suitable for the decolorization of glucose sucrose, maltose and other refined sugar ... and refining of citric acid, cystine, oil, chemical products. Activated Carbon Media for Water Purification