Research Article
Aqueous Behaviour of Chitosan
Table 3
Chelation property of chitosan.
| Treatment | Concentration, gpl | Amount of Ca+2 ions (ppm) chelated after: | | | 2 hrs | 24 hrs | 48 hrs | 72 hrs | 96 hrs |
| Na4EDTA | 1 | 405 | 426 | 435 | 450 | 452 | CHT1 | 1 | 177 | 208 | 232 | 269 | 293 | CHT3 | 1 | 182 | 187 | 185 | 189 | 196 |
|
|
Initial concentration of Ca+2 in water = 625 ppm.
|