Titanium electrode for swimming pool
Base material:Grade 1 pure titanium
Standard:ASTM B265
Shape:titanium plate/mesh
Coating:Ruthenium-iridium
Product size can be processed according to customer requirements.
Anode life:1000-1500A/m2 current life,5 years life
Enhanced life:≧120 hours(refer to HG/T2471-2001 for test conditions)
Chlorine evolution potential:≦1.12V(test conditions refer to HG/T2471-2001)
Polarizability:≦40mV(refer to HG/T2471-2001 for test conditions)
Product Introduction
Product Overview
Ru/Ir (Ruthenium–Iridium oxide) coated titanium electrodes are high-performance dimensionally stable anodes (DSA) designed for saltwater swimming pool chlorination systems.
These electrodes are manufactured using high-purity Grade 1 titanium substrates coated with mixed metal oxide catalytic layers. The coating enables efficient electrochemical chlorine generation through the electrolysis of dissolved sodium chloride (NaCl) in water.
This technology provides:
Continuous on-site chlorine generation
Stable water disinfection performance
Reduced chemical chlorine consumption
Environmentally friendly operation
Working Principle
In saltwater chlorination systems, dissolved salt is converted into disinfecting chlorine compounds through electrochemical reactions.
Electrochemical Reactions
Overall Reaction:
NaCl + H₂O → NaClO + H₂↑
Anode Reaction:
2Cl⁻ → Cl₂ + 2e⁻
Cathode Reaction:
2H⁺ + 2e⁻ → H₂
Solution Reaction:
2NaOH + Cl₂ → NaCl + NaClO + H₂O
The generated products include:
Hypochlorous acid (HOCl)
Sodium hypochlorite (NaClO)
These compounds effectively destroy:
Bacteria
Algae
Organic contaminants
Product Specifications & Performance
Structural Information
Product Size: Customizable
Base Material: Grade 1 Titanium (ASTM B265 Gr1)
Coating Material: Ru/Ir mixed metal oxide
Chemical Composition of Titanium Substrate
| Element | Max Content (%) |
|---|---|
| N | 0.03 |
| C | 0.08 |
| H | 0.015 |
| O | 0.18 |
| Fe | 0.20 |
| Ti | Balance (>99%) |
| Other Elements | ≤ 0.40 |
Electrochemical Performance
| Parameter | Value |
|---|---|
| Current Efficiency | > 85% |
| Chlorine Evolution Potential | ≤ 1.12 V |
| Polarizability | ≤ 40 mV |
| Service Life | ~ 5 years (normal operation) |
Test standards:
HG/T 2471-2001
Life Test Performance
Enhanced life test condition:
1 mol/L H₂SO₄
20000 A/m²
40 ± 1°C
Result: > 180 hours
Operating Conditions
Current Density:
1000 – 1500 A/m² (recommended)
Electrolyte:
3.5% NaCl solution
Temperature:
Normal pool operating temperature
Application Functions in Swimming Pools
Chlorine Generation
Provides continuous disinfection through electrolysis without manual chlorine addition.
Organic Contaminant Oxidation
Produces strong oxidizing species that remove:
Bacteria
Algae
Organic pollutants
Chloramine Reduction
Breaks down chloramines formed by chlorine + nitrogen compounds, improving:
Water quality
Swimmer comfort
Air quality above pool surface
pH Stability Assistance
Generates hydroxide ions that help reduce chemical pH adjustment requirements.
Cyanuric Acid Control
Helps maintain effective chlorine activity by preventing excessive cyanuric acid accumulation.
Advantages
Long service life (>5 years under normal conditions)
High current efficiency (>85%)
Excellent corrosion resistance
Strong anti-fouling performance
Reduced chemical dosing cost
Eco-friendly disinfection method
Stable electrochemical performance
Applications
Residential swimming pools
Commercial swimming pools
Spa and hot tub systems
Public water recreation facilities
Manufacturing Quality Control
Electrodes are produced using advanced coating deposition technology to ensure:
Uniform catalytic coating
Strong coating adhesion
Stable electrochemical performance
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