Extrepure Anion Resin – Strong Base Anion Exchange Resin 201×7

₵2,000.00

Extrepure Anion Resin is a premium-grade, strongly basic anion exchange resin designed for critical purification processes. Based on a styrene-divinylbenzene copolymer matrix with a 7% crosslinking degree, it features a quaternary ammonium functional group [-N⁺(CH₃)₃OH], providing excellent exchange capacity, high thermal stability, and robust mechanical strength. Analogous to leading brands such as Amberlite® IRA-400, Dowex®…

Key Features

Strong Base Anion Type I Resin with high exchange capacity
High thermal and chemical resistance in both Cl⁻ and OH⁻ forms
Excellent physical strength for long operating life and reduced breakdown
Wide pH operating range (1–14) for flexible use across processes
Stable performance in pure water and high-purity applications

Typical Properties

Property	Specification
Matrix	Styrene-divinylbenzene
Functional Group	-N⁺(CH₃)₃
Appearance	Light yellow/white spherical beads
Total Exchange Capacity (dry)	≥ 3.6 mmol/g
Total Exchange Capacity (wet)	≥ 1.4 mmol/ml
Particle Size Range (0.315–1.25 mm)	≥ 95%
Water Retention	42 – 48%
True Wet Density	1.07 – 1.10 g/ml
Apparent Wet Density	0.67 – 0.73 g/ml
Reversible Swelling (Cl⁻ → OH⁻)	18 – 22%
Ionic Form (as shipped)	Cl⁻

Recommended Operating Conditions

Parameter	Range / Limit
Operating pH Range	1 – 14
Max Temp (OH⁻ form)	40°C
Max Temp (Cl⁻ form)	100°C
Working Flow Rate	15 – 30 m/h
Regenerant Concentration	HCl / NaOH: 4 – 5%

Applications

Demineralization and mixed-bed systems for ultrapure and high-purity water production
Biochemical purification, including extraction and decolorization
Industrial and municipal wastewater treatment
Separation and recovery of organic substances
Extraction of radioactive elements and rare metals
Hydrometallurgical recovery of tungsten and molybdenum