Description

Dowex(R) 50 Wx2 is a strongly acidic cation exchange resin supplied in the sodium form, widely recognized for its high capacity and consistent performance. This product is essential for processes requiring the selective removal or exchange of cations from aqueous and non-aqueous solutions. It is a critical component for industries such as water treatment, chemical purification, pharmaceuticals, and catalysis, where reliable ion separation is paramount.

Application

• Water Purification & Demineralization: For softening and deionization of process water, boiler feed water, and ultrapure water production.
• Chemical & Pharmaceutical Purification: Used in the purification of sugars, amino acids, antibiotics, and other fine chemicals by removing cationic impurities.
• Catalysis: Serves as an acid catalyst in various organic synthesis reactions, including esterification and hydrolysis.
• Hydrometallurgy & Metal Recovery: Employed for the selective recovery and separation of valuable metal ions like copper, nickel, and rare earth elements from process streams.
• Analytical Chemistry: Used in chromatographic separations and as a stationary phase for ion-exchange chromatography.
• Sugar & Sweetener Processing: For decolorization and demineralization of sugar syrups and other sweetener solutions.

Basic Information

Product Name	Dowex(R) 50 Wx2
CAS No.	12612-37-2
Molecular Formula	(C8H8)n·(C2H4)m·SO3Na
Molecular Weight	N/A (Polymeric Material)
Synonyms	Dowex 50W-X2; Sodium polystyrene sulfonate; Polystyrene sulfonic acid sodium salt; Cation exchange resin (strong acid, Na+ form); Amberlite IR-120 (Na) equivalent; Sulfonated polystyrene resin; Na+ form cation exchanger; Strongly acidic cation exchanger
EINECS	Contact for details

Quality Control

Every batch of Dowex(R) 50 Wx2 is manufactured and tested under a stringent quality management system to ensure it meets precise performance criteria for ion exchange capacity, particle size distribution, and chemical stability. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent moisture uptake, which can affect performance. Keep away from strong acids and incompatible organic solvents.

Specification

Item	Specification
Appearance	Yellowish to brown beads
Ionic Form (as shipped)	Sodium (Na+)
Total Exchange Capacity	≥ 1.7 meq/mL (min)
Moisture Holding Capacity	43 - 48 %
Particle Size Range	100 - 200 mesh (US Standard)
Uniformity Coefficient	≤ 1.7
pH Range (Stable)	0 - 14
Maximum Operating Temperature	150 °C (Na+ form)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.