Re:
Scott: I'm sure Richard or Ryuji will know far more than I . . but it is primarily a concentrated alum and used as the hardener in fixing baths. From being an outdoors-man one can use it as a flocculating agent to clarify water: 1. treat water with concentrated chlorine crystals and wait overnight, and in the morning it'll be VERY chlorine smelling 2. pour in a concentrated form of hydrogen peroxide such as used in hair salons (BUT beware as it can BURN or oxide your skin) until the chlorine odor is gone . . you can put in a bit more and it'll make the water kinda effervescent 3. add a tsp of so of aluminum sulfate and the flocculating (causing to form into clumps) aspect of it will take any of the portions, say, of algae or particulant matter and drop it to the bottom and/or make it/them easy to filter out. It is quite astringent and you might've come across in the form of a styptic pencil if you cut yourself shaving. Cheers Jack On November2007, at 3:16 PM, Weber, Scott B wrote: Someone just came by the lab and dropped off a few boxes containing
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