coolrunnings - 25-10-2005 at 00:14
I reacted CuSO4 with KI in solution
As expected a precipitate was formed, however, CuI is suppost to be a grey precipitate while i got a red precipitate.
I'm guessing there was some sort of ligand formed.
Can anyone please help me with a definitive answer?
Mephisto - 25-10-2005 at 02:29
Usually the precipitate has a brown colour because of the precipitating iodine. The unstable CuI2 is formed intermediately, which decomposes to CuI
and I2.
~Mephisto
coolrunnings - 25-10-2005 at 02:30
thank you very much
i discovered then answer soon after i asked this question.
sorry this was an easy question i had a mental blank or something.
[Edited on 25-10-2005 by coolrunnings]