Measuring zeta potential is useful in determining which property of a liquid formulation?
Viscosity
Stability of the colloidal particles
Solubility
Size of the colloidal particles
Zeta potential measures the magnitude of the electric field existing between two particles in a liquid dispersion/suspension.
Greater the Zeta potential more will be the stability of colloidal particles as there will be a balance between the repulsive interactions between the charges of the electrical double layer and attractive van der Waal interactions between molecules.
Therefore, option number (2) is correct.
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