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

PURIONX D203

High selectivity for the removal of nitrate (NO₃⁻) and nitrite (NO₂⁻) from aqueous solutions, reducing total chlorine content

Ionic Form
Cl⁻
Strong-Base Capacity (mmol/g)
≥2.9
Volume Capacity (mmol/mL)
≥0.90
Water Retention (%)
48–58
Bulk Density (g/mL)
0.66–0.72
Optical Bead Specimen
Macroporous Strong Base Anion · D203
R–N⁺R₃ (MP)
Macroporous Strong Base Anion resin beads in a laboratory petri dish
0.315–1.25 mm
Appearance:Milky-white to light ivory opaque spherical microbeads
Polymer Matrix
Styrene-DVB
Bead Structure
Macroporous
Active Site
R–N⁺R₃ (MP)
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Physical & Chemical Specification Sheet — D203

Styrene-Based Macroporous Strong Base Anion Exchange Resin (Type I, II & Specialty) · Quaternary Ammonium (Macroporous)
R–N⁺R₃ (MP)
Grade Designation
D203
Ionic Form
Cl⁻
Strong-Base Capacity (mmol/g)
≥2.9
Volume Capacity (mmol/mL)
≥0.90
Water Retention (%)
48–58
Bulk Density (g/mL)
0.66–0.72
Specific Gravity (g/mL)
1.06–1.10
Particle Size Range (%)
0.315–1.25 mm ≥95
Effective Size (mm)
0.4–0.7
Uniformity Coeff.
≤1.6
Whole Bead After Attrition (%)
≥90
Reversible Swelling
Cl⁻ -> OH⁻ ≤20%
Color
White to light yellow
Application & Engineering Notes
High selectivity for the removal of nitrate (NO₃⁻) and nitrite (NO₂⁻) from aqueous solutions, reducing total chlorine content
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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