Question

How does the crystallisation of sugar takes place? Explain me with the help of reactions involoved in this.

Answer 1

Crystallization of sugar is carried out after evaporation of sugarcane juice.

During evaporation the clarified sugar cane juice is boiled in evaporators which remove most of the water leaving a thick syrup. Then in the crystallization process, the syrup is boiled at low temperatures under partial vacuum which causes the development and growth of sugar crystals and the outcome is called massecuite which is raw sugar crystals mixed with molasses. The sugar crystals and molasses are then separated in centrifugal.

Crystallization of sugar is a physical process. There is no chemical reaction involved in it.