Iontosorb EDTA
is a chelating sorbent with ethylenediamine-tetraacetic acid (EDTA) bound covalently in side chains of bead-form cellulose:
A chemical stability of this functional group is limited to pH 8. In alkaline media above pH 8 hydrolysis takes place and the whole functional group removes.
Iontosorb EDTA is delivered with the following content of functional groups:
Iontosorb EDTA 50
|
|
Content of functional groups (*) |
| LOW | 0.15 to 0.40 |
| MEDIUM | 0.50 to 0.80 |
| HIGH | 0.90 to 1.15 |
(*) mmol Cu / gram dry sorbents
Iontosorb EDTA 100
|
|
Content of functional groups (*) |
| LOW | 0.10 to 0.30 |
| MEDIUM | 0.40 to 0.50 |
| HIGH | 0.60 to 0.90 |
(*) mmol Cu / gram dry sorbents
In an order a demanded content of functional groups shall be given (e.g. Iontosorb EDTA 50 M means demanded content of functional groups 0.50 - 0.80 mmol/g dry).
Technical Parameters
| Porozity Type | Particle Size [ um ] |
| EDTA 50 | |
| 50 - 100 | |
| 100 - 250 | |
| 250 - 500 | |
| EDTA 100 | 30 - 50 | 50 - 80 |
| 80 - 100 | |
| 100 - 250 | |
| 250 - 500 |