Daniell Cell
Product Code : SCL-PLE-11789
Quick Answer: The Daniell Cell is a two-fluid primary cell in which a polished copper vessel serves as the positive electrode and an amalgamated zinc rod in a porous pot as the negative, giving a steady EMF of 1.08 V for potentiometer and redox experiments.
Last updated: 18 October 2026
Key Features
- Two-fluid cell giving a stable open-circuit EMF of 1.08 V.
- Copper vessel acts as both container and positive electrode.
- Amalgamated zinc rod with brass terminal as the negative electrode.
- Porous pot separates the electrolytes while letting ions pass.
- Saturated copper sulphate on the copper side.
Technical Specifications
| Specification | Value |
|---|---|
| Type | Primary wet cell, two-fluid |
| Nominal voltage | 1.08 V (stable open circuit) |
| Negative electrode | Amalgamated zinc rod, brass terminal |
| Positive electrode | Polished copper vessel |
| Separator | Porous pot |
| Copper-side electrolyte | Saturated copper sulphate (CuSO4) |
How It Is Used
The copper vessel is filled with saturated copper sulphate and the porous pot, holding the zinc-side electrolyte and the zinc rod, is set inside it. Because its EMF stays steady, the cell is used as the standard cell when comparing EMFs on a potentiometer and in lessons on redox reactions.
Frequently Asked Questions
What EMF does the Daniell Cell give?
A stable open-circuit EMF of 1.08 V.
What is the porous pot for in the Daniell Cell?
It keeps the two electrolytes apart while allowing controlled ion migration, so the cell does not polarise.
Related Physics Lab Equipment
See the full physics lab equipment range, or these related primary cells and substitutes:
- Leclanche Cell 1.5V
- Daniel Cell Substitute 1.08V
- Electronic Daniell Cell
- Potentiometer Apparatus
- Simple Cell Kit
For a quotation on the Daniell Cell, contact JLab India on +91-8569909696.
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