ABSTRACT
The crystallization phenomenon has been of interest to engineers, physicists, metallurgists, and chemists as well as others in the field of scientific research. Crystallization is generally considered as the precipitation of crystals from a supersaturated solution. The quantitative kinetics of crystallization and their use for design purposes are mainly studied by those in the chemical engineering field. Crystallization is one of the less familiar unit operations to most chemical engineers, and is classified as a diffusional operation accompanied by formation of a new heterogeneous phase. The crystallization process can only be understood by considering its thermodynamic aspects, diffusion theory, and particle liquid fluid dynamics. Those particular physical phenomena associated with crystallization which require knowledge and understanding arc supersaturation, nucleation, and crystal growth. Crystallization experiments must be used to find habit modifiers. In such experiments the supersaturation and the concentration of a modifier are very effective for habit modification.
