Table 4.3. Solubility of some compounds having high molecular weights.
|
MW |
|
|
S (%) |
Dextran |
10000 |
+1.13 |
0.4 |
> 50 |
Polyethylene oxide |
6000 |
+2.78 |
0.212 |
> 50 |
Adsorption on a surface
Fig. 4.3: Adsorption on a surface in presence of water
Adsorption is a pseudo-chemical reaction in equilibrium.
If 
Such an adsorption finds use in many applications like chromatography separation schemes. In such separation schemes, a solute is first adsorbed and then desorbed. Several modes of liquid chromatographic separations are possible. Some of them have been discussed below.
|
