Nice experiment, but would be nicer with pictures and values ;-) like weights.
Ni(NO3)2 complex with ammonia (NH3) is just like the one of Cu(NO3)2 ...deep blue and soluble.
Why would you expect the chlorate complex to behave differently (to be unsoluble and purple)?
Why do you make NH4ClO3 to destroy it and finally regenerate it?
...it is also not into use to make your Ni(NH3)6(ClO3)2.
To precipirate your complex, you will need ethanol or isopropanol...and eventually diethylether. |