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g666
(Stranger) 07-13-03 03:03 No 446723 |
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Accidental freak strong acid created | Bookmark | |||||
Upon adding approximately 15 mL aqueous 31% HCl (by volume) to 1.5 g of what I think to be red phosphorus (from match-books) the solution heated up. I never took a temperature measurement, but it didn't heat up too much - I could still hold it, it was luke-warm. I then poured the HCl off on to a granite slate. The liquid instantly effervesced, foaming all over the slab and turning yellow. I then washed the effervesced liquid off with water, to find a red discoloration in the granite slab and a slight depression where I first poured the solution onto it. Now, plain muriatic acid is NOT strong enough to do this - and I dont believe that such a minimal temperature change could have affected the reaction. Could someone explain to me what happened with the red phosphorus? I didn't think a reaction would take place. Thanks in advance ![]() |
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fierceness (Hive Addict) 07-14-03 01:34 No 446920 |
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you acid washed your granite with the muriatic | Bookmark | |||||
you acid washed your granite with the muriatic acid.. no big deal |
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