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IRON3+ & THIOCYANATE EQUILIBRIUM SHIFT: ION COLORS<br />
(yellow)Fe 3+(aq) + (colorless)SCN-(aq)<=>(red)FeNCS 2+(aq)<br />
Left to Right: Original solution (orange). FeCl3 increases red [FeNCS 2+]. KSCN increases red [FeNCS 2+] further. H2C2O4 increases yellow [Fe 3+]. HgCl2 increases colorless [SCN-].

Fphoto-37839408-2RM.jpg

IRON3+ & THIOCYANATE EQUILIBRIUM SHIFT: ION COLORS
(yellow)Fe 3+(aq) + (colorless)SCN-(aq)<=>(red)FeNCS 2+(aq)
Left to Right: Original solution (orange). FeCl3 increases red [FeNCS 2+]. KSCN increases red [FeNCS 2+] further. H2C2O4 increases yellow [Fe 3+]. HgCl2 increases colorless [SCN-].

Copyright:© 1994 Richard Megna - Fundamental Photographs

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Richard Megna