Description

Dowex(R) Hcr-W2 Hydrogen Form is a high-capacity, strongly acidic cation exchange resin supplied in its hydrogen (H+) ionic form. This product is essential for processes requiring the removal or exchange of cations from aqueous and certain organic solutions, offering exceptional chemical and physical stability. It is a critical component for industries focused on purification, catalysis, and chemical synthesis, where reliable ion exchange performance is paramount.

Application

• Water Purification & Demineralization: Used in mixed-bed and polishing units to produce high-purity water for power generation, pharmaceuticals, and microelectronics.
• Chemical Processing & Catalysis: Serves as an acid catalyst in organic synthesis reactions, including esterification and hydrolysis, offering a reusable alternative to liquid mineral acids.
• Sugar & Sweetener Refining: Employed for decolorization, deashing, and demineralization of sugar syrups, high-fructose corn syrup (HFCS), and other sweeteners.
• Hydrometallurgy & Metal Recovery: Facilitates the selective recovery and concentration of valuable metal cations, such as copper, nickel, and rare earth elements, from process streams.
• Pharmaceutical Purification: Used in the purification and isolation of active pharmaceutical ingredients (APIs), antibiotics, and other fine chemicals.
• Condensate Polishing: Critical in thermal power plants to remove cationic impurities from boiler feedwater and condensate, protecting equipment from corrosion and scaling.

Basic Information

Product Name	Dowex(R) Hcr-W2 Hydrogen Form
CAS No.	76689-17-3
Molecular Formula	(C8H8·C4H6O3·C2H4)x
Molecular Weight	N/A (Cross-linked polymer)
Synonyms	Dowex 50WX2; Dowex HCR-W2; Polystyrene sulfonic acid resin; Strongly acidic cation exchange resin; Sulfonated polystyrene-divinylbenzene copolymer; Amberlite IR-120 (similar type); Cation exchanger, strongly acidic, gel type; Hydrogen form cation exchange resin
EINECS	Contact for details

Quality Control

Our Dowex(R) Hcr-W2 Hydrogen Form is manufactured under a stringent quality management system. Each batch undergoes rigorous testing to ensure consistent performance metrics, including total exchange capacity, moisture holding capacity, particle size distribution, and uniformity coefficient. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance protocols.

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 product is hygroscopic (moisture-sensitive); ensure the original container is securely sealed after each use to prevent moisture uptake, which can affect performance. Keep away from strong oxidizing agents.

Specification

Item	Specification
Ionic Form	Hydrogen (H+)
Matrix	Polystyrene-DVB, Gel
Functional Group	Sulfonic acid (-SO3H)
Total Exchange Capacity	≥ 1.8 meq/mL (H+ form)
Moisture Content	45 - 55 %
Particle Size Range	300 - 1200 µm
Uniformity Coefficient	≤ 1.7
pH Range (Stability)	0 - 14
Maximum Operating Temperature	120 °C

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