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Iron(III) chloride (ferric chloride) crystals..??

XSRtiliry
in Applied Chemistry

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i have used ferric chloride for copper pcb boards, and have left the solution to sit for almost a year.. i have noticed the seperation of some kind of solid, leaving a translucent green fluid..

 

after seperataing the liquid from solids, and leaving the fluid to sit again for a long time i noticed green "spike" crystals along with small octagon "Clear" crystals..

 

there were many other crystals in the "paste"... what could they all be??

i have a collection of some of them...

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