The term “Solubility “is the property of a solid, liquid, or gaseous chemical substance called solute to dissolve in a solid, liquid, or gaseous solvent to form a homogeneous solution of the solute in the solvent. Solubility of a substance fundamentally depends on the solvent, temperature and pressure. Extent of solubility of a specific substance in a specific solvent is measured as the saturation concentration where adding more solute does not increase its concentration in the solution system. [1]
time even solids. Heating media used is generally the hot fluid or steam or direct heating using electric heated coils. Some of the processes which involve heat transfer in pharmaceutical industry are: • Evaporators • Distillation • Drying • Crystallization • Preparation of semisolid dosage forms- creams, ointments and pastes etc. The equipments used for the transfer of heat are known either as heat exchangers or heat interchangers. Heat exchangers: These are the devices used to transfer heat from
thus growth. However, from the 1980s, there have been varied objective of providing aid with expected benefits in terms of economic growth, poverty reduction, investments and public expenditures in services in recipient countries. Some of these advantages include. 1. Foreign aid in the form of technical assistance provides technical knowledge and skills which influences positively the development process. The technical knowledge and skills are expected to influence the development process by improving