clear blue AP

[maltfoudy]

ran some pins in AP and after 3 days the AP is blue,started out green but is now blue....any ideas?

 

[ps_jb]

ran some pins in AP and after 3 days the AP is blue,started out green but is now blue....any ideas?

CuCl2*xH2O

 

[maltfoudy]

CU(h20)6+ ?

 

[aflacglobal]

Copper(II) Chloride is highly soluble in water and will produce a blue solution, but when concentrated the CuCl2 aqueous solution will turn dark green.

 

[ps_jb]

Copper(II) Chloride is highly soluble in water and will produce a blue solution, but when concentrated the CuCl2 aqueous solution will turn dark green.

Some Co2+ salts can be blue - but not CoCl2
So it should be CuCl2
Simple test is - add NaOH, and if precipitate is blue - and with ammonia produced dark blue solution - it's CuCl2