There is no net rotation of plane-polarized light in a racemate, making it optically inert. The two enantiomers rotate plane-polarized light in different directions, but because they are present in equal proportions, the rotations cancel out.In contrast to the two pure enantiomers, which have identical physical properties except for the direction of plane-polarized light rotation, a racemate might have attributes that are distinct from either of the pure enantiomers. Varied melting points are the most prevalent, however, solubilities and boiling points can also be different.