Mixed-bed Ion Exchangers
Combined Resins with Color Indicator |
Merck’s mixed-bed ion exchangers are a combination of strongly acidic cation exchangers and strongly basic anion exchangers. They include a convenient color indicator, which is characteristic for strongly basic anion exchangers. When loaded, the color indicator of Amberlite MB-3 changes from blue to brown. Transfer into the Na+/Cl- form can be successfully achieved using 10% sodium chloride solution. However, regeneration of mixed-bed ion exchangers back to the H+/OH- form is not possible under laboratory scale conditions.
Features and Benefits
- Combination of strongly acidic cation exchangers and strongly basic anion exchangers
- Blue-to-brown color indicator
- Easy transfer into Na+/Cl- form
Range of Applications
- Water demineralization
Product Information
Product |
Ion exchanger
|
Ion exchanger
|
Ion exchanger
|
Ion exchanger
|
|---|---|---|---|---|
Order number |
104836 | 115127 | 115965 | 115165 |
Functional groups |
~SO3/-N+(CH3)2(CH2OH) | ~SO3/-N+(CH3)2(CH2 OH) |
~SO3/-N+(CH3)2(CH2OH) | |
Counter ion/supplied as |
H+ and OH- | H+ and OH- | H+ and OH- | H+ and OH- |
Total ion exchange capacity
|
>0.4 |
>0.6 |
>0.6 |
|
Max. operating temperature °C |
40 (OH-) | 40 (OH-) | 60 | 60 |
pH range |
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 |
0.3-1.18 | 20-50 |
Moisture content % |
50-60 | 50-60 | 49-60 | |
Bulk density (g/l) |
600 | 600 | 690 | 610-680 |
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