Strongly Acidic Cation Exchangers
Highly Resistant and pH Independent |
Merck’s strongly acidic cation exchanger resins are highly resistant to acids, bases and organic solvents, as well as reducing and oxidizing agents. The ion exchange capacity of these resins is completely independent of the pH value of the solution to be exchanged. This allows the resins to be used across the entire range from pH 0 to14 – without any limitations. In the reaction, the neutral salt is split into the respective acid, whereas the ion exchangers are transferred into salt form. The SO3H functional groups of our strongly acidic cation exchangers exhibit an ionization degree corresponding to that of a strong mineral acid.
Features and Benefits
- Highly resistant to: acids; bases; organic solvents; reducing and oxidizing agents
- Effective from pH 0 to 14
- Ionization degree similar to strong mineral acid
Range of Applications
|
1. Water
|
2. Analytical
|
3. Food Stuff |
Product Information
ProductIon exchanger
|
Ion Exchanger |
Amberlite IR-120 |
Dowex 50 WX-8 |
Amberlyst 15 |
Dowex 50 WX-4 |
|---|---|---|---|---|---|
| Order number | 104765 | 115131 | 105221 | 115635 | 105238 |
| Matrix | Gel | Gel | Gel | Macroporous | Gel |
| Functional groups | SO3- | SO3- | SO3- | SO3- | SO3- |
| Counter ion/supplied as | H+ | H+ | H+ | H+ | H+ |
| Total ion exchange capacity (mval/mL) | >1.7 | >1.7 | >1.7 | >1.75 | >1.1 |
| Maximum swelling % | 7 | 7 | 3 | ||
| Max.operating temperature °C | 120 | 120 | 120 | 120 | |
| pH range | 0-14 | 0-14 | 0-14 | 0-14 | 0-14 |
| Particle size (mm) (mesh) ASTM | 0.3-1.2 15-50 |
0.3-1.2 15-50 |
0.08-0.25 60-170 |
0.3-1.2 15-50 |
0.18-0.5 85-35 |
| Moisture content % | 45-55 | 45-55 | 50-56 | 52-57 | 64-72 |
| Bulk density (g/l) | ~800 | ~800 | ~800 | ~800 | ~760 |
| Regenerant Concentration in water % | HCl 5-10 |
H2SO4 2-4 |
NaCl 8-10 |
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