Industry-Verified Manufacturing Data (2026)

High-Purity Zinc Anode Slab

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard High-Purity Zinc Anode Slab used in the Non-Ferrous Metal Production sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical High-Purity Zinc Anode Slab is characterized by the integration of Zinc Matrix and Surface Oxide Layer. In industrial production environments, manufacturers listed on CNFX commonly emphasize High-purity zinc (99.99%+) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

High-purity zinc slab used as consumable anode in electrolytic refining

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Product Specifications

Technical details and manufacturing context for High-Purity Zinc Anode Slab

Definition
A semi-finished zinc slab with exceptional purity levels, specifically manufactured for use as a consumable anode in the electrolytic refining process of non-ferrous metals. This material serves as the sacrificial electrode that dissolves during electrolysis, releasing zinc ions into the electrolyte solution while maintaining structural integrity throughout the process. Its controlled composition ensures minimal contamination of the cathode product, making it essential for producing high-grade refined zinc. The slab's uniform dimensions and consistent metallurgical properties enable predictable dissolution rates and efficient refining operations.
Working Principle
Acts as sacrificial anode that oxidizes during electrolysis, releasing zinc ions into electrolyte while maintaining electrical conductivity
Common Materials
High-purity zinc (99.99%+), Trace alloying elements
Technical Parameters
  • Minimum zinc purity level (%) Customizable
  • Standard slab thickness (mm) Customizable
Components / BOM
  • Zinc Matrix
    Primary conductive material that dissolves during electrolysis
    Material: High-purity zinc with controlled microstructure
  • Surface Oxide Layer
    Natural protective layer that forms during manufacturing
    Material: Zinc oxide (ZnO)
  • Hanging Lug Optional
    Attachment point for suspension in electrolytic cell
    Material: Same composition as main slab
Engineering Reasoning
Current density: 400-600 A/m², Temperature: 35-45°C, Electrolyte pH: 4.5-5.5
Current density > 650 A/m² causes dendritic growth; Temperature > 50°C accelerates passivation; pH < 4.0 induces hydrogen evolution reaction
Design Rationale: Faraday's law of electrolysis governs zinc dissolution; Nernst equation determines electrode potential; Passivation occurs when zinc oxide/hydroxide layer exceeds 10 μm thickness
Risk Mitigation (FMEA)
Trigger Electrolyte chloride ion concentration > 50 ppm
Mode: Pitting corrosion reducing anode mass efficiency below 85%
Strategy: Implement ion-exchange resin purification with < 20 ppm chloride specification
Trigger Current density gradient > 15% across anode surface
Mode: Non-uniform dissolution creating structural weak points
Strategy: Design bipolar electrode configuration with uniform field distribution

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for High-Purity Zinc Anode Slab.

zinc anode plate electrolytic zinc anode sacrificial zinc slab refining anode material high purity zinc anode slab for electrolytic refining 99.99% zinc anode slab specifications consumable zinc anode for non-ferrous metal production zinc anode slab density and lead content electrolytic refining zinc slab dimensions

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric (submerged in electrolyte bath)
flow rate: Electrolyte circulation: 0.1-0.5 m/s (optimizes mass transfer)
temperature: Ambient to 50°C (typical electrolytic bath range)
current density: 200-600 A/m² (typical zinc refining range)
purity requirement: ≥99.995% Zn (electrolytic grade)
slurry concentration: Not applicable (solid anode in liquid electrolyte)
Media Compatibility
✓ Zinc sulfate electrolyte (acidic bath) ✓ Copper electrowinning circuits ✓ Cadmium recovery systems
Unsuitable: Chloride-based electrolytes (causes excessive corrosion and impurity pickup)
Sizing Data Required
  • Required anode current (A) or total cell current
  • Electrolyte composition and acidity (pH/sulfate concentration)
  • Desired anode lifetime or replacement frequency

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Galvanic corrosion
Cause: Electrochemical reaction with dissimilar metals in electrolyte, leading to accelerated zinc dissolution and pitting, especially at contact points or in mixed-metal assemblies.
Mechanical deformation or cracking
Cause: Thermal cycling or uneven mechanical stress during operation, causing fatigue, warping, or fracture due to zinc's relatively low melting point and brittleness under certain conditions.
Maintenance Indicators
  • Visible pitting, excessive surface roughness, or irregular dissolution patterns on the anode surface
  • Audible cracking sounds or visible cracks during thermal cycles, or abnormal voltage/current fluctuations in the electrochemical system
Engineering Tips
  • Ensure proper electrical isolation and use compatible metals in the assembly to minimize galvanic couples; apply protective coatings on non-active surfaces if feasible.
  • Implement controlled thermal management and uniform mechanical support to reduce stress concentrations; regularly monitor anode thickness and replace before excessive thinning occurs.

Compliance & Manufacturing Standards

Reference Standards
ASTM B418-18: Standard Specification for Cast and Wrought Galvanic Zinc Anodes ISO 752:2021: Zinc for anodes - Classification and chemical composition DIN 50969:2014: Zinc anodes for cathodic protection - Requirements, testing
Manufacturing Precision
  • Thickness: +/- 1.0 mm
  • Flatness: 0.5 mm per 100 mm length
Quality Inspection
  • Chemical Composition Analysis via Optical Emission Spectrometry
  • Visual and Dimensional Inspection per ASTM A90/A90M

Factories Producing High-Purity Zinc Anode Slab

Verified manufacturers with capability to produce this product in China

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✓ 98% Supplier Capability Match Found

P Procurement Specialist from Singapore Feb 20, 2026
★★★★★
"As a professional in the Non-Ferrous Metal Production sector, I confirm this High-Purity Zinc Anode Slab meets all ISO standards."
Technical Specifications Verified
T Technical Director from Germany Feb 17, 2026
★★★★★
"Standard OEM quality for Non-Ferrous Metal Production applications. The High-Purity Zinc Anode Slab arrived with full certification."
Technical Specifications Verified
P Project Engineer from Brazil Feb 14, 2026
★★★★★
"Great transparency on the High-Purity Zinc Anode Slab components. Essential for our Non-Ferrous Metal Production supply chain."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

17 sourcing managers are analyzing this specification now. Last inquiry for High-Purity Zinc Anode Slab from Thailand (1h ago).

Frequently Asked Questions

What is the typical zinc purity level in your anode slabs?

Our high-purity zinc anode slabs contain 99.99%+ pure zinc, with trace alloying elements carefully controlled to ensure optimal performance in electrolytic refining processes.

How does the lead content affect electrolytic refining performance?

Lead content is maintained at low ppm levels to prevent contamination during electrolysis. Excessive lead can reduce current efficiency and affect cathode zinc quality, making precise control essential.

What are the standard dimensions available for zinc anode slabs?

We provide custom slab dimensions (length, width, thickness) to match specific electrolytic cell requirements. Standard thickness ranges support uniform current distribution and consistent consumption rates.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Non-Ferrous Metal Production sector.

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