Colloidal Dispersions Review

Flashcards for reviewing key concepts and facts about colloidal dispersions from the lecture notes.

The concept of __ theory helps explain the stability of dispersions.

DLVO

The Tyndall Effect refers to the __ of light by particles in a colloid or suspension.

scattering

Colloidal particles are classified as having a particle size between and .

1 nm - 0.5 μm

Particles that aggregate will lead to __ due to their larger size.

sedimentation

The stability of colloidal dispersions can be influenced by __ factors such as pH and ionic strength.

environmental

Van der Waals forces are the primary __ forces between colloidal particles.

attractive

Electrostatic repulsion in colloidal systems is due to the __ surface charge of the particles.

net

The zeta potential is defined as the __ potential at the slipping plane of a particle.

electrical

A zeta potential greater than __ mV indicates a highly stable colloidal dispersion.

30

Steric interactions can increase stability by creating a __ barrier around colloidal particles.

coating