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Highly selective chloride-form strong base anion exchange resin with Type I functional groups.
Excellent chemical and thermal stability, suitable for continuous operation in demanding industrial environments.
Optimized bead uniformity and high physical strength, minimizing pressure drop and bed compaction during service cycles.
Low operating resistance and fast kinetics for efficient nitrate, sulfate, and chromate removal.
Regenerable with sodium chloride brine, supporting sustainable water reuse and low total cost of ownership.
Drinking water treatment for selective nitrate and perchlorate removal.
Industrial process water polishing in pharmaceutical and electronics manufacturing.
Wastewater pretreatment for heavy metal oxyanion (e.g., CrO₄²⁻, AsO₄³⁻) capture prior to discharge.
Food & beverage industry demineralization where chloride form ensures minimal sodium leakage.
Nuclear power plant coolant purification for sulfate and borate control.
| Chemical Type | Strong base anion exchange resin, Type I quaternary ammonium |
| Product Form | Chloride (Cl⁻) form |
| Appearance | Moist, spherical beads, off-white to light yellow |
| Functional Group | –N⁺(CH₃)₃ |
| Moisture Content | 48–55% (as shipped) |
| Particle Size Range | 0.3–1.2 mm (95% retained on 16 mesh, passes 50 mesh) |
| Uniformity Coefficient | ≤ 1.6 |
| Maximum Operating Temperature | 60 °C (140 °F) |
Q1: What is the primary functional group and ionic form of AMBERLITE IRA 402 CL?
A: AMBERLITE IRA 402 CL is a strongly basic anion exchange resin in the chloride form, featuring quaternary ammonium functional groups (Type I) grafted onto a styrene-divinylbenzene copolymer matrix.
Q2: How does IRA 402 CL differ from other strong base anion resins like IRA 900 or IRA 910?
A: IRA 402 CL is specifically designed for high selectivity toward multivalent anions (e.g., sulfate, nitrate, phosphate) and offers enhanced chemical stability in chloride-rich environments. Its macroporous structure provides improved kinetics and fouling resistance compared to gel-type resins, particularly in applications involving organic contaminants or variable feed water quality.
Q3: Can IRA 402 CL be used for nitrate removal from drinking water?
A: Yes — IRA 402 CL is widely applied for selective nitrate removal due to its favorable affinity for nitrate over chloride, especially in low-sulfate water sources. Performance depends on competing anions, pH, and operating conditions, and regeneration with sodium chloride is standard.
Q4: What are key handling and storage recommendations for this resin?
A: Store in original sealed packaging at temperatures between 5 °C and 40 °C, avoiding freezing and direct sunlight. Once hydrated, keep the resin moist to prevent shrinkage and cracking. Before use, rinse thoroughly with deionized water to remove fines and residual manufacturing agents.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
