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Indion Cation Resin

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Indion Cation Resin is a synthetic ion exchange resin designed primarily for the removal of positively charged ions (cations) from water and various liquid streams. Typically composed of a sulfonated polystyrene-divinylbenzene (PS-DVB) copolymer, this resin features a highly porous bead structure with functional groups that exchange hydrogen or sodium ions for calcium, magnesium, iron, and other metallic cations. Available in different forms (strong acid cation, weak acid cation), Indion Cation Resin is widely used in water treatment, industrial processes, and purification systems.

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Categories: Precious Metal Extraction Agents, Chelating Agents, Coagulants and Flocculants, pH Adjusters Tags: Chemical Processing, Indion Cation Resin, Ion Exchange Resin, Pharmaceuticals, Wastewater treatment, Water Softening Resin

Description

Table of Contents

Indion Cation Resin

Primary Uses

Water Treatment & Purification

Water Softening: Removes hardness-causing ions (Ca²⁺, Mg²⁺) in residential, commercial, and industrial water systems, preventing scale buildup in boilers and pipes.
Demineralization/Deionization: Used in combination with anion exchange resins to produce high-purity water by removing nearly all dissolved ionic contaminants.
Boiler Feed Water Treatment: Ensures low conductivity and reduced scaling in high-pressure boilers by eliminating dissolved salts and metal cations.
Condensate Polishing: Removes impurities from condensed steam in power plants to protect turbines and condensers from corrosion.

Industrial Processing

Chemical Manufacturing: Removes interfering cations in process streams to ensure reaction specificity, purity, and product yield.
Pharmaceutical & Biotech Applications: Used in water-for-injection (WFI) systems and laboratory-scale purification where ultrapure water is essential.
Food & Beverage Industry: Applied in beverage processing (e.g., sugar refining, juice clarification) to remove unwanted metallic ions that affect taste, color, and stability.

Metal Recovery & Separation

Hydrometallurgy: Extracts valuable metal ions such as copper, nickel, or rare earth elements from leach solutions during mining and ore processing.
Electroplating Baths: Maintains bath chemistry by removing excess or contaminant metal ions.

Secondary Uses

Environmental Remediation

Wastewater Treatment: Removes heavy metals (Pb²⁺, Cd²⁺, Hg²⁺) from industrial effluents before discharge or recycling.
Groundwater Clean-up: Deployed in environmental engineering to reduce toxic metal content in contaminated aquifers.

Laboratory Applications

Analytical Sample Preparation: Conditions and purifies samples by removing matrix interferences prior to spectroscopy or chromatography.
Ion Chromatography Pre-treatment: Used to condition samples by removing cations that interfere with accurate separation and detection.

Specialty Applications

Catalyst Support: Acts as a solid support or medium for acid-catalyzed reactions in organic synthesis and fine chemical manufacturing.
Electronics Industry: Helps produce ultrapure rinse water in semiconductor and electronics manufacturing.

KEY ATTRIBUTES

Basic Identification Attributes

Chemical Name (IUPAC): Polystyrene sulfonic acid (crosslinked with divinylbenzene), hydrogen or sodium form
Common/Trade Name: Indion Cation Resin
CAS Number: 69011-20-7 (typical for sulfonated PS-DVB resins)
HS Code: 3914.00.21 (Ion-exchange resins, based on polymers)
Synonyms: Cation Exchange Resin; SAC Resin (Strong Acid Cation); WAC Resin (Weak Acid Cation); Polystyrene Sulfonate Resin

Physical & Chemical Properties

Physical State: Spherical beads
Color & Odor: Amber to golden brown (typical); odorless
Bead Size: 0.3–1.2 mm (customizable depending on grade)
Moisture Content: 45–60% (hydrated form)
Ionic Form: Supplied in H⁺ or Na⁺ form
Capacity: 1.8–2.2 eq/L (depending on resin type and condition)
Swelling: ~5–10% upon regeneration (varies by grade)
Solubility: Insoluble in water and common solvents
Functional Group: Sulfonic acid (-SO₃H) for SAC resins; carboxylic acid (-COOH) for WAC resins

Safety & Hazard Attributes

GHS Classification

Not classified as hazardous under GHS

Toxicity

Non-toxic; not absorbed in biological systems
Not intended for ingestion or inhalation of dry powder

Exposure Limits

No specific occupational exposure limits established

Storage & Handling Attributes

Storage Conditions

Store in original packaging, away from sunlight and extreme temperatures
Keep hydrated; never allow resin to dry out completely

Container Type

Supplied in polyethylene-lined fiber drums, HDPE containers, or bulk super sacks

Shelf Life

Up to 5 years if stored properly in hydrated form

Handling Precautions

Avoid impact or crushing to preserve bead integrity
Use appropriate PPE when handling in bulk or during regeneration with acids/bases

Regulatory & Compliance Attributes

Food & Pharmaceutical Grades: Certain Indion grades are compliant with USP, EP, and FDA regulations for use in water treatment and food processing
REACH & RoHS Compliance: Many variants meet European regulatory standards
NSF Certification: Select grades are certified for use in potable water systems

Environmental & Health Impact

Biodegradability: Not biodegradable (synthetic polymer backbone)
Ecotoxicity: Not inherently toxic to aquatic life in stable, bead form
Bioaccumulation: Not bioaccumulative
Disposal: Resin should be disposed according to local regulations; regeneration chemicals must be handled and neutralized appropriately

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

PPE Required

Gloves, safety goggles, and dust mask when handling in dry form or during transfer
Apron and face shield during regeneration (acid/base handling)

Handling Guidelines

Avoid mechanical stress or heat exposure
Do not let resin dry out (resin performance degrades irreversibly when desiccated)

Storage Measures

Store in moisture-retaining packaging
Avoid storage near oxidizing agents or reactive chemicals

First Aid Measures

Inhalation: If dust or fumes (from regeneration) are inhaled, move to fresh air; seek medical attention if irritation persists
Skin Contact: Rinse with soap and water if irritation occurs; avoid prolonged contact with regenerant solutions
Eye Contact: Flush eyes with water for at least 15 minutes; seek medical attention if irritation persists
Ingestion: Not intended for ingestion; seek medical advice if swallowed

Firefighting Measures

Fire Hazards: Not flammable; however, will emit toxic fumes (CO, CO₂, SOₓ) when burned
Extinguishing Media: Use water spray, CO₂, dry chemical, or foam
Special Precautions: Use SCBA and full protective gear; avoid inhaling combustion gases