Hanna HI1331B Refillable pH Electrode for Flasks
The Hanna HI1331B Refillable pH Electrode for Flasks is a refillable combination pH electrode, expertly designed for measuring pH in laboratory flasks and round-bottom containers. Its spherical tip, low-temperature glass, and refillable electrolyte system offer reliable performance, especially during repetitive lab procedures or precision chemical testing.
Key Features
Accurate Readings in Flasks: The 7.5 mm spherical tip makes excellent contact with the curved surfaces of flasks, allowing users to obtain accurate and stable readings with ease.
Refillable Electrolyte System: Users can refill the electrode with KCl 3.5M + AgCl electrolyte, extending the electrode’s life and ensuring consistent performance in demanding applications.
Low-Temperature Glass Formula: The electrode responds quickly in lower temperature samples, which makes it ideal for cold buffer solutions and ambient lab environments.
Steady Electrolyte Flow: The single ceramic junction delivers a stable flow rate of 15–20 µL/h, which helps maintain consistent signal quality throughout measurements.
Compatible Connection: The BNC connector and 1-meter coaxial cable easily connect to most standard laboratory pH meters without the need for adapters.
Technical Specifications
| Parameter | Details |
|---|---|
| Model | HI1331B |
| Electrode Type | Combination pH Electrode |
| Reference Type | Single, Ag/AgCl |
| Junction / Flow Rate | Ceramic, single / 15–20 µL/h |
| Electrolyte | Refillable KCl 3.5M + AgCl |
| pH Range | 1 to 12 |
| Operating Temperature Range | 0 to 70°C |
| Glass Type | LT (Low Temperature) |
| Tip Shape | Spherical (7.5 mm diameter) |
| Body Material | Glass |
| Maximum Pressure | 0.1 bar |
| Temperature Sensor | No |
| Amplifier | No |
| Cable Type | Coaxial; 1 meter |
| Connector Type | BNC |
| Recommended Use | Flasks and curved glassware |
Applications
Laboratory pH Testing in Flasks: Scientists and technicians can rely on the HI1331B to measure pH accurately in Erlenmeyer flasks and round-bottom containers during titrations and buffer preparation.
Academic and Research Labs: Educators and researchers often select this electrode for its ease of use and precision when working with small sample volumes.
Pharmaceutical and Chemical Analysis: Lab professionals use this probe to test formulations and chemical reactions that require precise readings in glassware.
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