What is the color of ferrous sulphate crystals?

Answer: Light green

  • The ferrous sulphate crystals are light green. Ferrous sulphate is also obtained as a by-product in the manufacture of titanium pigment and copper sulphate.
  • The gas given out smells the characteristic odour of burning sulphur.
  • The heating colour changes from light green to white colour. On further heating the white substance turns into a dark brown solid.
  • When ferrous sulphate is heated, it gives ferric oxide, sulphur dioxide and sulphur trioxide.
FeSO→ Fe O 3 + SO+ SO3

white        brown

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