I made this little reaction today
The pink solution is a solution of Cu+2, SO4-2, NO3- and Co(H2O)6+2
I added some NaOH and Cu(OH)2 precipitated!
This is definitely one of my favorite compounds, it’s called Copper(II) Nitrate (Cu(NO3)2).
As you can see, it is a really beautiful compound because of the color of its deep-blue crystals.It is widely used in labs, it converts to copper(II) oxide, which is used as catalyst for a variety of processes in organic chemistry. Its solutions are used in textiles and polishing agents for other metals.