pH Composite Electrode (HF Acid Titrate) · PP Body · Ceramic Junction · S7 Connector · 2–11 pH
HF-resistant pH composite electrode for titration applications
OVERVIEW
This pH composite electrode for HF acid titration is specially designed for accurate pH measurements in solutions containing hydrofluoric acid (HF) or other aggressive media where standard glass electrodes would be rapidly corroded. The PP (polypropylene) body provides excellent chemical resistance against HF, while the ceramic junction and Longlife reference system ensure stable and reliable performance during titration processes.
With a pH range of 2–11, working temperature up to 60 °C, and dimensions of Φ12×120 mm, this electrode is ideal for routine and demanding titration applications in metal finishing, semiconductor manufacturing, chemical processing, and analytical laboratories. The S7 connector (requires an S7‑BNC(Q9) cable for meters with BNC input) ensures compatibility with a wide range of laboratory pH meters.
HF-resistant pH electrode for titration applications featuring PP body, ceramic junction, Longlife reference, and S7 connector. pH 2–11, 0–60 °C, Φ12×120 mm — ideal for hydrofluoric acid titrations and aggressive chemical environments.COLO.Science · Practical and robust equipment for everyday laboratory workflows.
COLO.SCIENCE KNOWLEDGE
Practical insights for pH measurement in HF-containing media
Explore technical articles on HF-resistant electrodes, titration techniques in aggressive media, and best practices for accurate pH determination in challenging chemical environments.
Product Overview
The pH composite electrode for HF acid titration is engineered to withstand aggressive hydrofluoric acid environments while delivering accurate and stable pH readings. Its PP (polypropylene) body offers superior resistance to HF corrosion, making it the preferred choice for titration applications involving fluoride-containing samples. The ceramic junction ensures a stable liquid junction potential, and the Longlife reference system guarantees long-term reliability with minimal maintenance. With standard Φ12×120 mm dimensions, it fits most laboratory glassware and titration vessels.
Compatibility notice — connector and meter matching are essential
This electrode 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. For meters with direct S7 input, no cable is needed.
Key Features
PP Body
Ceramic Junction
pH Range 2–11
Longlife Reference
0–60 °C
3 M KCl Fill
Φ12×120 mm
S7 Connector
Electrode
Designed for reliable titration in aggressive HF environments
HF Resistance
PP body provides excellent resistance to hydrofluoric acid, ensuring long electrode life in HF‑containing solutions where standard glass electrodes fail.
Ceramic Junction
Stable porous ceramic junction ensures consistent electrolyte flow and reliable reference potential during titration.
Longlife Reference
Extended-life reference system provides long-term stability, ideal for routine titration workflows.
Electrode Design
- HF-resistant composite electrode
- Combines pH indicator and reference electrode
- PP body for chemical resistance
- Standard Φ12×120 mm dimensions
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 Titrate) |
| 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. |
pH Composite Electrode for HF Acid Titration
A specialized pH electrode for hydrofluoric acid titration and aggressive media with PP body, ceramic junction, Longlife reference, and S7 connector — supported by COLO.Science.
COLO.Science · Practical and robust equipment for everyday laboratory workflows.
