Gel Strong Base Anion (SBA)

Polymer Architecture & Functional Chemistry Profile

Anion Exchange Resin · 11 Standardized & Specialty Grades

Capacity ≥ 1.3–1.4 mmol/mL

Polymer Matrix

Styrene-DVB Copolymer

Bead Architecture

Gel

Active Functional Group

Quaternary Ammonium (Type I & II)

Chemical Site / Formula

R–N⁺(CH₃)₃

Standard Ionic / Pore Form

Cl⁻ / OH⁻

Key Benchmark

Capacity ≥ 1.3–1.4 mmol/mL

Grades in Gel Strong Base Anion (SBA) (11 — Click any grade for individual TDS) Sphericity ≥ 95%

Custom Screening & Ionic Conversion: Available in Cl⁻ and OH⁻ forms, plus FC (Floating Bed), SC (Double-Layer Bed), MB (Mixed Bed), and Uniform Particle (PX-201) grades.

Request Quote / 500 mL Sample Full Parameter Table (11) ↓ Brand Cross-Reference ↓

Lot-specific COA issued per shipment

ANION EXCHANGE RESIN · LABORATORY & PRODUCTION SPECIFICATIONS

Grade-by-Grade Technical Parameter Table

Click any grade code or TDS button to open its individual printable Technical Data Sheet, or click + RFQ to add multiple grades to your inquiry basket.

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Styrene-Based Gel-Type Strong Base Anion Exchange Resin — Physical & Chemical Specifications

R–N⁺(CH₃)₃ · Styrene-DVB · Gel · 11 Grades

Capacity ≥ 1.3–1.4 mmol/mL

Technical specifications of Styrene-Based Gel-Type Strong Base Anion Exchange Resin
Grade	Ionic Form	Strong-Base Capacity (mmol/g)	Volume Capacity (mmol/mL)	Water Retention (%)	Bulk Density (g/mL)	Specific Gravity (g/mL)	Particle Size Range (%)	Effective Size (mm)	Uniformity Coeff.	Whole Bead After Attrition (%)	Reversible Swelling	Color	Applications & Technical Remarks	TDS / RFQ
201×2	Cl⁻	≥4.0	≥0.75	72–80	0.65–0.70	1.01–1.07	0.315–1.25 mm ≥95	0.45–0.7	≤1.6	(≥90)	Cl⁻ -> OH⁻ ≤40%	Colorless to light yellow	Low cross-linked gel resin with excellent kinetic properties; mainly used for antibiotic extraction and organic acid adsorption	TDS
201×4 (Cl⁻)	Cl⁻	≥3.7 (3.9)	≥1.20	50–60	0.66–0.71	1.06–1.10	0.315–1.25 mm ≥95	0.45–0.7	≤1.6	(≥90)	Cl⁻ -> OH⁻ ≤33%	Colorless to light yellow	International-standard gel-type Type I anion resin with good kinetics and high working capacity; used for demineralization and silica removal, and widely used in food and pharmaceutical industries	TDS
201×4 (OH⁻)	OH⁻	≥3.8 (4.0)	≥1.00	60–70	0.65–0.70	1.05–1.09	0.315–1.25 mm ≥95	0.45–0.7	≤1.6	(≥90)	Cl⁻ -> OH⁻ ≤33%	Colorless to light yellow	Pre-regenerated OH⁻ form of 201×4 for direct demineralization and silica removal	TDS
201×7 (Cl⁻)	Cl⁻	≥3.5 (3.7)	≥1.35	42–48	0.67–0.73	1.07–1.10	0.315–1.25 mm ≥95	0.4–0.7	≤1.4	(≥90) ≥60	Cl⁻ -> OH⁻ ≤27%	Colorless to light yellow	Standard gel-type Type I anion resin with high total capacity and strong mechanical strength; widely used for water demineralization. FC grade for floating beds, SC grade for double-layer beds	TDS
201×7 (OH⁻)	OH⁻	≥3.6 (3.8)	≥1.10	53–58	0.66–0.71	1.06–1.09	0.315–1.25 mm ≥95	0.4–0.7	≤1.4	(≥90) ≥60	Cl⁻ -> OH⁻ ≤27%	Colorless to light yellow	Hydroxide-form 201×7 gel strong base anion resin for pure water and mixed-bed applications	TDS
201×7FC	Cl⁻	≥3.5 (3.7)	≥1.35	42–48	0.67–0.73	1.07–1.10	0.45–1.25 mm ≥95	≥0.5	≤1.4	(≥90) ≥60	Cl⁻ -> OH⁻ ≤27%	Colorless to light yellow	Floating-bed grade 201×7 with controlled coarse particle cut (0.45–1.25 mm)	TDS
201×7SC	Cl⁻	≥3.5 (3.7)	≥1.3	42–48	0.67–0.73	1.07–1.10	0.63–1.25 mm ≥95	≥0.63	≤1.4	(≥90) ≥60	Cl⁻ -> OH⁻ ≤27%	Colorless to light yellow	Double-layer bed lower-layer strong base anion resin grade	TDS
201×7MB	Cl⁻	≥3.5 (3.7)	≥1.35	42–48	0.67–0.73	1.07–1.10	0.4–0.9 mm ≥95	0.5–0.8	≤1.4	(≥90) ≥60	Cl⁻ -> OH⁻ ≤27%	Colorless to light yellow	Mixed-bed grade 201×7 engineered for clean hydraulic separation from 001×7MB / 001×8MB	TDS
PX-201 PURIONX	Cl⁻	≥3.5 (3.7)	≥1.35	45–50	0.67–0.73	1.07–1.10	0.5–0.7 mm ≥95	–	≤1.2	(≥90)	Cl⁻ -> OH⁻	Colorless to light yellow	Gel-type uniform-particle strong base anion resin with good kinetics and low pressure drop; used for demineralization and ultrapure water, alone or combined with PX-001 in mixed beds	TDS
202-Ⅱ	Cl⁻	≥3.5 (3.6)	≥1.25	48–55	0.68–0.75	1.08–1.15	0.315–1.25 mm ≥95	0.4–0.7	≤1.6	(≥90)	Cl⁻ -> OH⁻ ≤25%	Colorless to light yellow	Type II gel strong base anion resin with very high working capacity and caustic regeneration efficiency; mainly used for demineralization	TDS
202SC	Cl⁻	≥3.4 (3.5)	≥1.2	48–55	0.68–0.75	1.08–1.15	0.63–1.25 mm ≥95	≥0.63	≤1.4	(≥90)	Cl⁻ -> OH⁻ ≤25%	Colorless to light yellow	Double-layer bed grade of Type II gel strong base anion resin	TDS

Note: Available in Cl⁻ and OH⁻ forms, plus FC (Floating Bed), SC (Double-Layer Bed), MB (Mixed Bed), and Uniform Particle (PX-201) grades. Batch COA supplied with every shipment

CROSS-REFERENCE MATRIX

Comparable International Brand Grades (Gel Strong Base Anion (SBA))

Reference equivalents from Purolite, Dowex, Amberlite, Lewatit, Diaion, Duolite, and ResinTech based on matrix structure, functional group, and exchange capacity.

⇄ Swipe horizontally to compare all 9 international resin brands