Applications
AutomotiveIon Exchange Resin > St Acid Gel Cation 8% Cross Link - Model EC-8
EC-8
Ecologix Systems' EC8-Na resin is a high capacity, conventional gel polystyrene strong acid cation exchange resin designed for use in residential 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 concentrated sodium or potassium chloride solution. The capacity obtained depends largely on the amount of salt used in the regeneration. Typically 15 lbs of chemical per ft3 is used to obtain maximum capacity of up to 32,000 grains per ft3. Ecologix Systems' C8-Na resin is also capable of removing in the same way dissolved iron, manganese, and also suspended matter by virtue of the filtering action of the bed.
Typical Physical, Chemical & Operating Characteristics
Chemical and Thermal Stability
Ecologix Systems' EC8-Na resin is insoluble in dilute or moderately concentrated acids, alkalies, and in all common solvents. However, exposure to >1 ppm of free chlorine, “hypochlorite” ions, or other strong oxidizing agents over long periods of time will eventually break down the crosslinking. Temperature over 30 oC (85 oF) will accelerate the oxidation. 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 Polystyrene sulfonated resins, it is thermally stable to higher than 138 oC (280 oF) in the alkali (for instance, sodium) or alkaline earth (calcium and magnesium) salt forms. The free acid form tends to hydrolyze in water temperatures appreciably higher than 120 oC (250 oF) thereby losing capacity, as the functional groups are gradually replaced by hydroxyl groups.
Ecologix Systems' EC8-Na resin is a high capacity, conventional gel polystyrene strong acid cation exchange resin designed for use in residential 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 concentrated sodium or potassium chloride solution. The capacity obtained depends largely on the amount of salt used in the regeneration. Typically 15 lbs of chemical per ft3 is used to obtain maximum capacity of up to 32,000 grains per ft3. Ecologix Systems' C8-Na resin is also capable of removing in the same way dissolved iron, manganese, and also suspended matter by virtue of the filtering action of the bed.
Typical Physical, Chemical & Operating Characteristics
| Polymer Structure: Physical Form and Appearance: Whole Bead Count: Functional Groups: Ionic Form (as shipped): Shipping Weight, approx.: Mesh Size (U.S. Std): Moisture retention, Na+ form: Swelling, Na+—>H+: Total Capacity in sodium form: pH Range, Stability: |
Polystyrene 8% cross linked with Divinylbenzene amber spherical beads 90% Min. Polystyrene sulfonate Na+ 850 g/l (53 lb./ft.3) 16-50 45–50% 5% max. 1.9 meq/ml 0–14 |
Chemical and Thermal Stability
Ecologix Systems' EC8-Na resin is insoluble in dilute or moderately concentrated acids, alkalies, and in all common solvents. However, exposure to >1 ppm of free chlorine, “hypochlorite” ions, or other strong oxidizing agents over long periods of time will eventually break down the crosslinking. Temperature over 30 oC (85 oF) will accelerate the oxidation. 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 Polystyrene sulfonated resins, it is thermally stable to higher than 138 oC (280 oF) in the alkali (for instance, sodium) or alkaline earth (calcium and magnesium) salt forms. The free acid form tends to hydrolyze in water temperatures appreciably higher than 120 oC (250 oF) thereby losing capacity, as the functional groups are gradually replaced by hydroxyl groups.
Available Types Of Resin
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