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CHARGE ON COLLOIDAL PARTICLES

• It is always , that colloidal particles carry charge on their surface.
• It can POSITIVE OR NEGATIVE
• WHY DO THEY CARRY CHARGE ? WHAT HAPPENS WHEN THEY DO NOT ?
• They carry charge on their surface because they do not form aggregate so that they do not form precipitate. The presence on equal charge on the every colloidal particles surface will cause repulsion therefore resulting in the formation of colloidal solution.

HOW WE OBTAIN CHARGE ON COLLOIDAL PARTICLES

• PREFERENTIAL ADSORPTION OF IONS :
• 
• Legenda: PREFERENTIAL ADSORPTION

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