Weak Acid Cation (WAC) Exchangers
Weak Acid Cation (WAC) ion exchange resins are primarily used for water dealkalization and softening, but also can be applied for the removal of heavy metals in potable, process and wastewater treatment. They are also used in drinking water cartridges, pharmaceutical and biotech applications.
All weak acid cation resin products have a polyacrylic backbone. The functional carboxylic groups give high chemical efficiency, with very low regenerant demand.
They are typically supplied in H⁺ form, but they are also available with partial conversion in Na⁺/Mg²⁺/Ca²⁺ form
|
Product |
Type |
Ionic Form |
Total Volume Capacity (min.) (eq/l) |
Moisture Retention (%) |
Specific Gravity |
Reversible Swelling (max. %) |
Remarks & Applications |
|
C104Plus |
Porous Polyacrylic |
H⁺ |
4.7 |
45−55 |
1.19 |
H⁺→Ca²⁺ 20 H⁺→Na⁺ 60 |
High capacity regenerable dealkalization resin with good exchange kinetics. Also available in food grade as C104EPlus. |
|
C106 |
Macroporous Polyacrylic |
H⁺ |
2.7 |
54−64 |
1.14 |
H⁺→Ca²⁺ 20 H⁺→Na⁺ 100 |
Higher resistance to OSA. For process applications, such as antibiotics extraction from fermentation broths and treatment of ammoniacal condensates. |
|
C107E |
Porous Polyacrylic |
H⁺ |
3.6 |
53−58 |
1.17 |
H⁺→Ca²⁺ 25 H⁺→Na⁺ 90 |
Specifically designed dealkalization resin for use in small cartridges for domestic applications. Not usually regenerated. |
|
C115E |
Porous Polymethacrylic |
H⁺ |
3.5 |
46−53 |
1.10 |
H⁺→Ca²⁺ 40 H⁺→Na⁺ 100 |
Very weakly acidic for process applications especially in the pharmaceutical industry. Recommended for the Carix™ (Veolia Water Technologies) process. |
NOTE: Resins with partial conversion in Na⁺/Mg²⁺/Ca²⁺ form are available for cartridge applications.
出典: Purolite Product Guide p.4
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