what is lyophobic colloid? =_=
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Lyophobic colloids are liquid hating colloids (Lyo means solvent and phobic means hating). In Lyophobic sol, weak forces of interaction exist between colloidal particles and liquid.
Explanation:
Lyophobic colloids are liquid hating colloids (Lyo means solvent and phobic means hating). When these colloids are mixed with the suitable liquid, very weak force of attraction exists between colloidal particles and liquid and system does not pass into colloidal state readily. Therefore, lyophobic sols are difficult to prepare. Special techniques are employed to prepare these sols.
Note: Water hating colloids are called hydrophobic colloids and colloidal dispersion formed is called hydrophobic sol.
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Lyo means solvent and phobic means hating. So, lyophobic colloids are liquid hating colloids.
Lyophobic system does not pass into colloidal state readily because when these colloids are mixed with a suitable liquid, a very weak force of attraction exists between colloidal particles and the liquid.
Their dispersed phase has no affinity for the dispersion medium. They are unstable sols and are irreversible. Some examples are metal in water, ferrie hydroxide sol etc. Whereas milk is lyophobic colloid .
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