Iron Hydroxides Precipitates
by GIPhotoStock
Title
Iron Hydroxides Precipitates
Artist
GIPhotoStock
Medium
Photograph - Photograph
Description
Iron (III) and iron (II) hydroxides precipitates. Iron (III), left, and iron (II), right, hydroxides precipitates formed by adding few drops of a 1M solution of sodium hydroxide (NaOH) to 0.2 M solutions of ferric chloride (FeCl3) and ferrous sulfate (FeSO4), respectively. The reactions are FeCl3 + NaOH -> Fe(OH)3 + NaCl and FeSO4 + NaOH -> Fe(OH)2 + Na2SO4. These are examples of a double replacement reaction. Pure iron (II) hydroxide is white, however even trace amounts of oxygen make it greenish.
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September 29th, 2014
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