Purification of organic compounds

Several methods are available for the purification of substances. Though, the selection of method, depends upon the nature of substance (if solid or liquid) and the kind of impurities present in it. Subsequent methods are commonly employed for this aim,

A. Simple crystallisation

B. Fractional crystallisation,

C. Sublimation

D. Simple distillation

E. Fractional distillation

F. Distillation under reduced pressure

G. Steam distillation                

H. Azeotropic distillation

I. Chromatography

J. Differential extraction

K. Chemical methods