Question

Explain Themal decomposition of Iron(2) sulphate.

Answer 1

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Iron (2) sulphate denotes a range of salts with the formula FeSO4°H2O. These compounds exist most commonly as the heptahydrete value of x. The hydrated from is used medically to treat iron deficiency, and also for industrial applications. Known since ancient times as copperas and as green vitrial, the blue - green heptahydrete is the most common from of this material.
All the iron (2) sulphates dissolve in water to give the same aquo complex [Fe(H2O6)2+ which has octahedral moleculer geometry and is paramagnetic . The name as blue copperas, and perhaps in analogy iron (2) and zinc sulfate were known respectively as green and white copperas .

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Answer 2

When further heated the anhydrous material releases sulphur dioxide and white fumes of sulphur trioxide leaving a reddish brown iron (III) oxide. Decomposition of iron (II) sulphate begins at about 680 °C ( 1256 °F).

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