Steam distillation is not recommended to be used, if the

• A. azeotropic mixture is to be separated and the final product is miscible with water.
• B. liquids decompose, if distilled directly at atmospheric pressure.
• C. material can not be distilled by indirect heating even under low pressure, because of the high boiling temperature.
• D. material to be distilled is thermally unstable or has the tendency to react with other components associated with it, at the boiling temperature.