Systems of solids in liquids include the most frequently encountered and probably the most important type of pharmaceutical solutions. Many important drugs belong to the class of weak acids and bases. They react with strong acids and bases and, within […]
A phase is the part whose physical and chemical properties are completely equal and homogenous. it is separated from other parts of the system by interfaces. A system containing water and its vapor is a two-phase system. An equilibrium mixture […]
Solubility of Liquid in Liquid: Frequently two or more liquids are mixed together in the preparation of pharmaceutical products (e.g. aromatic waters, spirits, elixirs, lotions, sprays, and medicated oils). Liquid–liquid systems can be divided into two categories according to the […]
SOLVATION: The interaction between solute and solvent molecule which leads to stabilisation of solute species in the solution is called as solvation. The strength and nature of interaction between the solute molecule and solvent influences many properties of solute like […]