Weakly Basic Anion Exchangers
Economical and Effective |
Weakly basic anion exchangers have an effective pH range of 0 to 7. One of the advantages these resins offer is their excellent regeneration capability. Due to their weak basicity, they can be easily regenerated through treatment with NaOH, Na2CO3 or NH3, with only a slight loss of the theoretical amount. This flexibility makes weakly basic anion exchangers a highly economical resin to use and reuse.
Features and Benefits
- Effective from pH 0 to 7
- Good regeneration capabilities
- Economical in use
Product Information
Product |
Ion exchanger Amberlite IRA-67 |
|---|---|
| Order number | 115959 |
| Matrix | Acrylic divinylbenzene copolymer |
| Functional groups | ~NR2 |
| Total ion exchange capacity (mval/mL) | >1.6 |
| Maximum reversible swelling % | 30 |
| Max. operating temperature °C | 60°C |
| pH range | 0-7 |
| Particle size (mm) | 0.5-0.75 |
| Moisture content % | 35-40 |
| Bulk density (g/l) | 720 |
| Regenerants (100% basis) |
NaOH NH4OH Na2CO3 |
| Flow Rate (BV/h) | 4-8 4-8 4-8 |
| Concentration (%) | 2-4 2-4 4-8 |
| Level | 130% of ionic load |
| Minimum Contact Time | 30 minutes |
| Rinse Flow Rate | 4 BV/h initially to displace regenerant, then 12 BV/h |
| Rinse Water Requirements | 6.68 to 10 BV (Bed volumes) |
Related Resources
Merck offers an extensive range of services, information and tools to support you in your analysis. Use the links below to learn more.
Chromatography
Application Notes Finder
Search for chromatography applications by analyte, column type, detection method, sorbent type or any other search term:
