Industry-Verified Manufacturing Data (2026)

Glass Electrode

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Glass Electrode used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Glass Electrode is characterized by the integration of Glass Membrane and Internal Reference Electrode. In industrial production environments, manufacturers listed on CNFX commonly emphasize Special pH-sensitive glass construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A specialized sensor component within a pH monitoring probe that generates an electrical potential proportional to hydrogen ion concentration.

Product Specifications

Technical details and manufacturing context for Glass Electrode

Definition
The glass electrode is the critical sensing element of a pH monitoring probe, consisting of a thin glass membrane that selectively responds to hydrogen ions. It forms part of an electrochemical cell where the potential difference across the glass membrane correlates directly with the pH of the solution being measured.
Working Principle
The glass electrode operates based on ion exchange at the glass membrane surface. Hydrogen ions in the solution interact with the hydrated glass layer, creating a potential difference between the internal reference solution and the external test solution. This potential is measured against a reference electrode to determine pH.
Common Materials
Special pH-sensitive glass, Silver/silver chloride reference element, Internal buffer solution, Epoxy or plastic housing
Technical Parameters
  • Measurement range typically 0-14 pH with accuracy ±0.01 to ±0.1 pH depending on quality (pH) Per Request
Components / BOM
  • Glass Membrane
    pH-sensitive element that selectively responds to hydrogen ions
    Material: Special pH-sensitive glass
  • Internal Reference Electrode
    Provides stable reference potential within the electrode
    Material: Silver/silver chloride
  • Internal Buffer Solution
    Maintains constant pH inside the electrode
    Material: pH buffer solution
  • Electrode Body
    Protective housing and structural support
    Material: Epoxy, plastic, or glass
  • Reference Junction
    Allows electrical contact between reference electrode and test solution
    Material: Ceramic, wood, or porous polymer
Engineering Reasoning
0-14 pH at 0-80°C with -414 to +414 mV output
Glass membrane fracture at 1.5 MPa internal pressure differential or dehydration below 5% relative humidity for 24 hours
Design Rationale: Hydronium ion exchange equilibrium disruption due to glass membrane hydration loss (H3O+ diffusion coefficient drops below 1×10^-9 cm²/s)
Risk Mitigation (FMEA)
Trigger Asymmetric thermal expansion between pH-sensitive glass (α=8.5×10^-6/°C) and reference electrode body (α=17×10^-6/°C)
Mode: Glass membrane microcrack propagation leading to KCl electrolyte leakage
Strategy: Thermal expansion coefficient matching using borosilicate glass housing with α=8.5×10^-6/°C
Trigger Hydrogen ion saturation at glass membrane surface exceeding 1×10^18 ions/cm²
Mode: Nernst equation deviation causing -59.16 mV/pH slope reduction to below -50 mV/pH
Strategy: Automatic electrode cleaning cycle with 0.1M HCl solution every 24 operational hours

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Glass Electrode.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 6 bar (standard), up to 16 bar with reinforced construction
other spec: pH range: 0-14, slurry concentration: <25% solids by weight, flow rate: <2 m/s to prevent abrasion
temperature: 0°C to 80°C (standard), up to 130°C with high-temperature glass
Media Compatibility
✓ Aqueous solutions ✓ Food/beverage processing streams ✓ Pharmaceutical process fluids
Unsuitable: Hydrofluoric acid or highly alkaline solutions (pH >12) at elevated temperatures
Sizing Data Required
  • Process temperature range
  • Required pH measurement accuracy (±0.01 to ±0.1 pH)
  • Process connection type and immersion length

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Glass membrane cracking
Cause: Mechanical stress from impact, thermal shock due to rapid temperature changes, or improper handling during installation/cleaning
Reference junction contamination
Cause: Clogging or poisoning of the porous junction by process media, solids buildup, or chemical reactions that block ionic conductivity
Maintenance Indicators
  • Erratic or drifting pH readings despite calibration
  • Visible cracks, chips, or cloudiness in the glass bulb
Engineering Tips
  • Implement controlled temperature transitions and use protective sleeves/shields to prevent thermal/mechanical shock
  • Establish regular cleaning protocols using appropriate solutions and perform routine calibration checks to detect early degradation

Compliance & Manufacturing Standards

Reference Standards
ISO 17025:2017 - General requirements for the competence of testing and calibration laboratories ASTM E70-19 - Standard Test Method for pH of Aqueous Solutions with the Glass Electrode IEC 60746-2:2003 - Expression of performance of electrochemical analyzers - Part 2: pH value
Manufacturing Precision
  • pH Accuracy: +/-0.02 pH units
  • Response Time: 95% of final reading within 30 seconds
Quality Inspection
  • Electrode Slope Test - Verification of Nernstian response (typically 95-102% of theoretical slope)
  • Asymmetry Potential Test - Measurement of potential difference between identical buffer solutions

Factories Producing Glass Electrode

Verified manufacturers with capability to produce this product in China

✓ 97% Supplier Capability Match Found

P Procurement Specialist from Canada Jan 19, 2026
★★★★★
"Testing the Glass Electrode now; the technical reliability results are within 1% of the laboratory datasheet."
Technical Specifications Verified
T Technical Director from United States Jan 16, 2026
★★★★★
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
Technical Specifications Verified
P Project Engineer from United Arab Emirates Jan 13, 2026
★★★★★
"As a professional in the Computer, Electronic and Optical Product Manufacturing sector, I confirm this Glass Electrode meets all ISO standards."
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.”

19 sourcing managers are analyzing this specification now. Last inquiry for Glass Electrode from USA (59m ago).

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Frequently Asked Questions

What makes glass electrodes suitable for computer and electronic manufacturing applications?

Glass electrodes provide precise, stable pH measurements essential for quality control in electronics manufacturing processes like chemical etching, plating, and cleaning, where pH levels affect product reliability and performance.

How does the silver/silver chloride reference element in a glass electrode work?

The silver/silver chloride reference element maintains a constant electrical potential by creating a stable interface with the internal buffer solution, ensuring accurate pH readings by completing the electrochemical circuit within the electrode.

What maintenance is required for glass electrodes in industrial pH monitoring systems?

Regular calibration with standard buffer solutions, proper storage in electrode storage solution to prevent glass membrane dehydration, and periodic cleaning to remove contaminants from manufacturing processes ensure long-term accuracy and reliability.

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.

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