QUESTIONS FOR m-Dinitrobenzene lab (Nitration of the aromatic molecules) 5) Would it have been okay to...

QUESTIONS FOR m-Dinitrobenzene lab (Nitration of the aromatic molecules)

5) Would it have been okay to use gravity filtration rather than suction filtration for the recrystallized product? WHY or WHY not?

Expert Solution

Gravity filtration is generally used in the case to remove solid impurities and particals present in liquid. It is not efficient in the case to the liquid impurities from the solid particles. It is not preferrable to filter crystallized solid substance from liquid under hot conditions. It is a slow process takes long time. While filtering under hot conditions of a recrystallized solid substance from liquid solidification takes place. So that gravity filtration is not suitable those processes

Suction filtration is used in the case of liquid impurities along with solid substance. It is faster and more efficient in the case of recrystallized product.

5) Answer

In preparation of m-dinitro benzene there are many impurities present (0-dinitro benzene and p-dinitro benzene).

In recrystallization process to remove all the impurities efficientyl from the solid substance to get pure compound.

The filtration must be performed under hot conditions. slow process is not prefferable.

Gravity filtration is less efficient.

queen_honey_blossom answered 2 years ago

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