Water Technology in Motion

Aquatrol Resin

Aquatrol ResinCAT-100E resin is a 10% cross-linked, high capacity, conventional gel polystyrene strong acid cation exchange resin designed for use in residential and/or industrial water softening equipment. Cation resin in sodium form removes hardness ions such as calcium and magnesium by replacing them with sodium. When the resin bed is exhausted the hardness ions begin to pass through the bed.

 

Functionality is returned by regeneration with a 10% sodium or potassium chloride solution. The capacity obtained depends largely on the amount of salt used in the regeneration. Typically 8 lbs of salt per ft3 is used to obtain recoverable capacity of up to 24,000 grains per ft3 and 30,000 grains with 12 lbs.

CAT-100E resin is also capable of removing dissolved iron, manganese, and suspended matter by virtue of the filtering action of the bed. Special regeneration may be required to minimize iron fouling.

CAT-100E conforms to FDA 21 CRF 173.25 Food Additive Regulations for ion exchange resin.

Typical Physical, Chemical & Operating Characteristics
Polymer Structure: 10% cross-linked Styrene/DVB
Physical Form and Appearance: Spherical amber beads
Whole Bead Count: 95% minimum.
Functional Groups: Sulfonated styrene
Ionic Form (as shipped): Sodium (Na+)
Shipping Weight, approx.: 850 g/l (53 lb./ft.3)
Mesh Size (U.S. Std.): 16-50
Moisture retention, Na+ form: 42-45%
Swelling, Na+—>H+: 5% max.
Total Capacity in sodium form: 2.1 meq/ml minimum
pH Range, Stability: 0–14

CHEMICAL AND THERMAL STABILITY
CAT-100E resin is insoluble in dilute or moderately concentrated acids, alkalis, and in all common solvents. However, exposure to >1.0 ppm of free chlorine (hypochlorite)or other strong oxidizing agents over long periods of time will eventually break down the cross-linking. This will tend to increase the moisture retention of the resin, decreasing it s mechanical strength, as well as generating small amounts of extractable breakdown products. Like all conventional sulfonated polystyrene resins, CAT-100E is thermally stable to higher than 150°C (300°F) in the salt form (as softening resin). The acid (H+ form) may hydrolyze in water temperatures appreciably higher than 120°C (250°F) thereby losing capacity as the functional groups are gradually replaced by hydroxyl groups. For feed waters >1.0 ppm free chlorine, we suggest the use of granular activated carbon to reduce the chlorine.

Download the CAT100E Spec Sheet

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