Difference between Lyophilic and Lyophobic colloids
Difference between Lyophilic colloids and Lyophobic colloids are in tabular form below –
Lyophilic colloids |
Lyophobic colloids |
1) Particles of lycophillic colloids are having greater affinity between dispersion medium. | 1) Particles having little affinity to the dispersion medium (Solvent) |
2) They are quite stable and aren’t get easily precipitated.
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2) They can be easily precipitated by addition of small amount of the electrolyte. |
3) They can be prepared easily by directly mixing with the liquid dispersion medium | 3) They cannot be prepared directly, can be prepared by the special method only |
4) They are reversible in nature. | 4) They are not reversible |
5) Their surface tension is lower than dispersion medium. | 5) Their surface tension is nearly same as the dispersion medium. |
6) They are highly stable due to the layers of dispersion medium.
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6) They are less stable and easily coagulated due to the presence of charges. |
7) Their viscosity is nearly much higher than that of solvent; Surface tension is usually low.
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7) Their viscosity is nearly same as that of the solvent and surface tensions are also almost same as that of the solvent. |
8) These are highly solvated as the particles have greater affinity for solvent. | 8) These particles have less affinity for the solvent |
9) The particles have little charge or no charge at all. | 9) The particles carry a charge either positive or negative. |
10) These particles cannot be seen under microscope. | 10) The particles can be seen under microscope. |
11) They precipitated by high conception of electrolysis. | 11) They precipitated by low concentration of electrolysis. |
12) They may or may not be migrating. | 12) Migrate towards anode or cathode. |
13) Small amounts of electrolyte have no effects. | 13) Small amount of electrolyte may coagulate the solution. |
14) Examples of lycophillic colloids are: solutions of gum, gelatin, starch, rubber. | 14) Examples of lycophobic colloids are: Solutions of metals and sulphides. |