PURIONX CHEMICALS (JIANGSU) CO., LIMITED PURIONX ISO 9001 · 14001 · 45001 200,000 m² Base · 63,000+ MT / year

PURIONX D403

Macroporous iminodiacetic acid (IDA) chelating resin with high selectivity for polyvalent metal ions; used for heavy metal wastewater polishing, hydrometallurgical separation, and brine refining

Ionic Form
Na⁺
Mass Capacity (mmol/g, dry)
1.95 (Cu²⁺)
Volume Capacity (mmol/mL)
0.6 (Cu²⁺)
Water Retention (%)
50–60
Bulk Density (g/mL)
0.72–0.80
Optical Bead Specimen
Macroporous Chelating Resins · D403
R–N(CH₂COO⁻)₂ / –CH₂PO₃²⁻
Macroporous Chelating Resins resin beads in a laboratory petri dish
0.315–1.25 mm
Appearance:Light yellow-grey to beige-brown opaque spherical beads
Polymer Matrix
Styrene-DVB
Bead Structure
Macroporous Chelating
Active Site
R–N(CH₂COO⁻)₂ / –CH₂PO₃²⁻
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Physical & Chemical Specification Sheet — D403

Macroporous Selective Chelating Resin · Iminodiacetic / Aminophosphonic
R–N(CH₂COO⁻)₂ / –CH₂PO₃²⁻
Grade Designation
D403
Ionic Form
Na⁺
Mass Capacity (mmol/g, dry)
1.95 (Cu²⁺)
Volume Capacity (mmol/mL)
0.6 (Cu²⁺)
Water Retention (%)
50–60
Bulk Density (g/mL)
0.72–0.80
Specific Gravity (g/mL)
1.13–1.22
Particle Size Range (%)
(0.315–1.250 mm) ≥95
Effective Size (mm)
0.4–0.7
Uniformity Coeff.
≤1.6
Whole Bead After Attrition (%)
≥90
Reversible Swelling
H⁺ -> Na⁺ <40
Color
Light yellow to light grey opaque spherical beads
Application & Engineering Notes
Macroporous iminodiacetic acid (IDA) chelating resin with high selectivity for polyvalent metal ions; used for heavy metal wastewater polishing, hydrometallurgical separation, and brine refining
Custom particle size screening & ionic conversion available. COA issued per lot

Values shown represent standard production specifications. Every commercial shipment is accompanied by a lot-specific Certificate of Analysis (COA) issued by PURIONX CHEMICALS (JIANGSU) CO., LIMITED.

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