Iron Hydroxides Precipitates

Iron Hydroxides Precipitates

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Caption: 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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Keywords: chemical, chemistry, chloride, compound, double replacement, double replacement reaction, fecl3, feoh2, feoh3, ferric chloride, ferrous sulfate, ferrous sulphate, feso4, green vitriol, hydroxide, iron, iron chloride, iron hydroxide, iron ii, iron iii, iron sulfate, iron sulphate, iron vitriol, metal hydroxide, naoh, oxygen traces, precipitate, reaction, salt, salt metathesis reaction, sodium hydroxide, still life, sulfate, sulphate, test tube, transition metal

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