Salt Bridge
Product Code : LSK-CL-10086
Salt Bridge (SKU LSK-CL-10086) is the U-shaped connecting tube that links the two half-cells of an electrochemical cell, letting ions flow between them while keeping the solutions apart. This model has arms of 13 mm diameter and is intended for experiments that measure cell EMF under forward, zero and reverse current flow. Science Lab Supplies provides it from Ambala, India, to schools, colleges, tender contractors and distributors.
Specifications
The bridge is a tube with two arms, each 13 mm in diameter, that dip into the electrolyte of the two half-cells. Once filled with a suitable electrolyte, it completes the internal circuit so that a steady EMF can be read across the electrodes with forward, zero or reverse current flowing.
| Parameter | Value |
|---|---|
| SKU | LSK-CL-10086 |
| Arm diameter | 13 mm |
| Intended use | Measurement of cell EMF under forward, zero and reverse current flow |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Salt Bridge
A salt bridge is needed in any galvanic cell experiment where the two electrodes stand in different solutions, such as the Daniell cell. It supports the electrochemistry chapter of NCERT Class 12 chemistry, B.Sc. physical chemistry practicals on EMF and electrode potentials, and potentiometer work in physics.
- Class 12 chemistry: setting up a Daniell cell and measuring its EMF.
- Class 12 practical: studying how EMF changes with the concentration of copper or zinc ions.
- B.Sc. physical chemistry: electrode potentials and the Nernst equation.
- Physics potentiometer experiments comparing cell EMF under different current conditions.
Before use, the tube is filled with an inert electrolyte, commonly potassium chloride or potassium nitrate set in agar, prepared by the laboratory. Wash and dry it after each practical so the solutions of the two half-cells are not contaminated.
Standard Scope of Supply
The Salt Bridge is supplied as a single unit as described above, with 13 mm arms. The electrolyte filling, beakers, electrodes and voltmeter are not part of this item; they can be quoted separately so the complete cell set-up reaches you on one order.
Packing, MOQ and Lead Time
Bridges can be quoted one at a time or in class quantities for every practical station. Science Lab Supplies lists packing, delivery time and price for the number you give on each quotation, and school chemistry lab equipment in India such as Daniell cells and electrodes can be included too.
Science Lab Supplies can ship to buyers in Nepal, Bangladesh, Zambia, Rwanda, South Africa and Qatar as a registered exporter holding an Importer-Exporter Code. For prices and availability, go to the contact page or the enquiry cart; the lab tender page is for tender buyers.
Frequently Asked Questions
What does a salt bridge do in a cell?
It connects the two half-cells so ions can move between them, keeping each solution electrically neutral and letting current flow, while stopping the solutions from mixing directly.
What is the arm diameter?
Each arm of this salt bridge is 13 mm in diameter, which suits the beakers normally used for half-cells in school and college practicals.
Is the electrolyte included?
No. The bridge is supplied empty, and the laboratory fills it with a suitable electrolyte such as potassium chloride in agar before the experiment.
Who supplies the Salt Bridge?
Science Lab Supplies supplies it from Ambala, India, to schools, colleges and distributors, with quotations for single pieces or tender quantities.
Related Electrochemistry Equipment
A salt bridge is one component of a galvanic cell. These four items supply the rest: two Daniell cell options, electrode plates for building half-cells, and a demonstration apparatus with a galvanometer, so an electrochemistry bench can be quoted and equipped in one go.
- Daniel Cell — the standard cell used with a salt bridge.
- Cell Daniel Copper With Zinc — copper and zinc half-cell set.
- Electrode Plate — metal plates for building half-cells.
- Apparatus for Demonstrating the Galvanic Element (With Galvanometer) — shows cell current on a meter.
Browse the full Chemistry Lab range or all school lab equipment.
Last updated: 25 September 2026
