Physical Chemistry


Chief Pharmacist

Rheology is the study of flow, addresses the viscosity characteristics of powders, fluids, and semisolids. Materials are divided into two ...

pKa or Dissociation Constants

Chief Pharmacist

Among the physicochemical characteristics of interest is the extent of dissociation or ionization of drug substances. This is important because ...

Partition Coefficient

Chief Pharmacist

A partition coefficient is the ratio of concentrations of a compound in a mixture of two immiscible solvents at equilibrium. ...