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Question about residue...

C

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Dec 21, 2000
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ya know when you wipe off the color change with a towel, you get the stain on the towel of what color was on the table. Well sometimes I test one, and it goes right to black, but then when I wipe it, the residue on the napkin or towel is black with green hints in it. Does this mean there is 2cb like substance in the pill?? Also, another pill took a bit longer to go dark (purple/blackish) and when I wiped it, the stain was dark purple.
The pill that stained the towel greenish-black tasted so much more nastier than the other pill. Also, the pill that stained greenishblack was suposedly a fire pill. But the other one was too.
I just want to know if others have had this happen too. (color is black but when you wipe the stain is greenish black)
thanks guys and be safe
 
only look at the colour of the reaction on the plate, and only for the first minute.
the greenish black on the the towel is simply the acid in the solution reacting with the towel. ignore it.
 
well the thing is i tested another pill and wiped it with the same towel and its stain was dark purple.
Also, the damn shit ate threw the towel!! haha came back to look at it again and it had about 3-4 holes 'burned' threw it.
becareful with this shhtuff guys
wink.gif
 
I always clean off the spot im testing with cleaner so it was all clean. Clean, did i say that enough?
thanks for the inputs you guys
 
Depending on what's in the cleaner, it could react.
Just do it the easy way: turn a white coffee cup (ceramic, of course!) upside down and test it there. Provides a nice concave surface, and cleans real easy: just rinse, maybe use a bit of soap, and then rinse well with plain water.
 
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