Ferric sulphate solution with dropper

Ferric sulphate solution with dropper

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Credit: RICHARD MEGNA/FUNDAMENTAL PHOTOS/SCIENCE PHOTO LIBRARY

Caption: A solution of iron (III) sulphate (also known as ferric sulphate), before the addition of ammonium thiocyanate. The reaction causes a colour change from yellow to red, the complex ion hexacyanoferrate (III) being formed. (Compare with A500/095)

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Keywords: apparatus, chemical, chemistry, chemistry apparatus, complex ion reactions, ferric sulphate, iron (iii) sulphate, solution

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