chemistry_pigments prussian blue 3r eso
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Synthesis of Prussian Blue
Eric Royo, Ferran Tscar 3rd ESO
A small beaker is needed
Place 1 mililiter of solution of iron chloride onto a small beaker. Place 1 mililiter of solution of potassium ferrocyanide on the beaker
Mix the two reactants and notice the dark blue colour
Gravity filter the precipitate
Finally the Prussian blue is recovered dried on the filter