pH Composite Electrode (HF Acid Resistant) for Aggressive Media · PP Body · S7 Connector · 2–11 pH
pH composite electrode HF acid resistance for Aggressive Media
OVERVIEW
This pH composite electrode with HF acid resistance is specially designed for pH measurements in solutions containing hydrofluoric acid (HF) or other aggressive media that would attack and destroy standard glass electrodes. The PP (polypropylene) body and specially formulated sensing element provide excellent chemical resistance while maintaining accurate pH response.
Combining pH indicator and reference electrode in one body, it features a Longlife reference system, a ceramic junction for stable electrolyte flow, and 3 M KCl fill solution. With pH range 2–11, PP body, and S7 connector, this electrode is ideal for applications in metal finishing, semiconductor manufacturing, chemical processing, and other industries where HF-containing solutions are encountered.
HF-resistant pH electrode for aggressive media featuring PP body, Longlife reference, and ceramic junction. pH range 2–11, 0–60 °C, S7 connector — ideal for hydrofluoric acid solutions and demanding chemical environments.COLO.Science · Practical and robust equipment for everyday laboratory workflows.
COLO.SCIENCE KNOWLEDGE
Practical insights for pH measurement in aggressive media
Explore technical articles on HF-resistant electrodes, pH measurement in challenging chemical environments, electrode selection for acid etching baths, and best practices for semiconductor and metal finishing applications.
Product Overview
The HF-resistant pH electrode is engineered for applications where standard glass electrodes would be rapidly corroded by hydrofluoric acid. The PP (polypropylene) body provides excellent chemical resistance, while the specially formulated sensing element maintains accurate pH response in HF-containing solutions up to 60°C. The ceramic junction ensures stable reference potential and long-term reliability.
Compatibility notice — connector and meter matching are essential
The connector must be compatible with the meter you are using. This model features an S7 connector and requires an S7-BNC(Q9) cable for use with meters having BNC input. Please confirm compatibility with your meter before ordering.
Key Features
PP Body
pH Range 2–11
Longlife Reference
Ceramic Junction
3 M KCl Fill
0–60 °C
S7 Connector
Electrode
Designed for aggressive chemical environments
HF Acid Resistance
Specially designed for solutions containing hydrofluoric acid. PP body and specialized sensing element resist corrosion where standard glass electrodes fail.
Ceramic Junction
Stable porous ceramic junction ensures consistent electrolyte flow and reliable reference potential in aggressive media.
Longlife Reference System
Extended-life reference system provides stable performance over time, reducing maintenance and replacement frequency.
Electrode Design
- HF-resistant composite design
- Combines pH indicator and reference electrode
- No separate reference electrode needed
- Optimized for aggressive chemical environments
Materials & Reference System
- Sensor material: PP (Polypropylene)
- Reference type: Longlife Reference
- Junction material: Ceramic
- Fill solution: 3 M KCl
Operating Conditions & Connection
- pH range: 2–11
- Working temperature: 0–60 °C
- Dimensions: Φ12×120 mm
- Connector type: S7 (requires S7-BNC(Q9) cable for BNC meters)
Technical Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Model | – | Name | pH composite electrode (HF acid) |
| pH Range | 2–11 | Fill Solution | 3 M KCl |
| Sensor material | PP | Working Temp. | 0–60 °C |
| Junction material | Ceramic | Reference Type | Longlife Ref. |
| Dimension | Φ12×120 mm | Connector Type | S7 |
Note: Please verify connector and meter compatibility before purchase. This electrode has an S7 connector and requires an S7-BNC(Q9) cable for use with meters having BNC input. Exact supplied configuration may vary depending on quotation and application.
General Electrode Notes
- pH electrodes are available as pH indicator electrode, composite electrode, and 3 in 1 pH composite electrode (with temperature probe).
- A pH indicator electrode needs to cooperate with a separate reference electrode.
- A composite electrode combines the pH indicator electrode and reference electrode.
- A 3 in 1 pH composite electrode combines the pH indicator electrode, reference electrode, and temperature probe.
- Temperature probes can adjust pH measurements by correcting the electrode slope according to the measured temperature.
- The connector must be compatible with the meter you are using. Options include S7 [S7-BNC(Q9) cable] and BNC(Q9).
Connector Options & Compatibility
Different meters may require different connection formats. Always confirm connector type before ordering.
| Connector / Option | Notes |
|---|---|
| S7 | This electrode features S7 connector. Use with S7-BNC(Q9) cable for meters with BNC input. |
| BNC(Q9) | Common pH electrode connector format. Can be adapted via S7-BNC(Q9) cable. |
HF-Resistant pH Electrode for Aggressive Media
A specialized pH electrode for hydrofluoric acid and aggressive chemical environments with PP body, Longlife reference, ceramic junction, and S7 connector — supported by COLO.Science.
COLO.Science · Practical and robust equipment for everyday laboratory workflows.
