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Adding ferric chloride to a tank of brown, cloudy water causes tiny pieces of STUFF to come together. Eventually, the clumps grow large enough to sink down to the bottom of the tank, clearing the water above. Ferric chloride (FeCl3) is a chemica
It is aluminum potassium sulfate. This is the type of alum that you find in the grocery store for pickling and in baking powder. It is also used in leather tanning, as a flocculant in water purification, as an ingredient in aftershave and as a
