Resin Ion Exchange

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Typical Physical & Chemical Characteristics
Polymer Matrix Structure	Crosslinked Polystyrene Divinylbenzene
Physical Form and Appearance	Clear spherical beads
Whole Bead Count	90% min
Functional Group	R–SO₃⁻
Ionic Form, as shipped	Na⁺
Shipping Weight (approx.)	50 g/l (53 lb/ft³)
Screen Size Range: – British Standard Screen	14 – 52 mesh, wet
U.S. Standard Screen	16 – 50 mesh, wet
Particle Size Range	1.2 mm <5%, 0.3 mm <1%
Moisture Retention, Na⁺ form	44 – 48%
Swelling Na⁺ → H⁺	5% max.
Ca²⁺ → Na⁺	5% max.
Specific Gravity, moist Na⁺ Form	1.29
Total Exchange Capacity, Na⁺ form, wet, volumetric dry, weight	2.0 eq/l min 4.5 eq/kg min
Operating Temperature, Na⁺ Form	150°C (300°F) max
pH Range, Stability pH Range Operating, Na⁺ cycle	0 – 14 6 – 10