Electrode Platinum
Product Code : LSK-CL-10246
Electrode Platinum (SKU LSK-CL-10246) is a pair of platinum foil electrodes, each sealed into a protective glass tube and wired through a rubber stopper to screw terminals. They are used mainly in water electrolysis apparatus such as the Hoffman voltameter, in senior-secondary chemistry and college electrochemistry practicals. Science Lab Supplies supplies the pair from Ambala, India to schools, colleges, laboratories, tender contractors and distributors, as replacements or for new set-ups.
Specifications
Each electrode is a rectangular platinum foil fused into an inner glass tube 110 mm long and 8 mm in diameter, covered by an outer glass tube 115 mm long and 18 mm in diameter. A connection lead runs inside the tube and through the stopper to a screw terminal. The foil shape exposes as much metal as possible to the water.
| Parameter | Value |
|---|---|
| SKU | LSK-CL-10246 |
| Quantity | Pair of electrodes |
| Electrode | Rectangular platinum foil |
| Inner glass tube | Length 110 mm x dia. 8 mm |
| Outer glass tube | Length 115 mm x dia. 18 mm |
| Connection | Internal lead through rubber stopper to screw terminals |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Electrode Platinum
These electrodes carry current into water or a dilute electrolyte so it decomposes into hydrogen and oxygen. Platinum is chosen because it is unreactive and does not dissolve or form oxides during electrolysis, so the gases collected come only from the water.
- Class 10 science (NCERT): electrolysis of water in a voltameter.
- Class 12 chemistry: electrolysis with inert electrodes and Faraday's laws.
- B.Sc. electrochemistry: comparing inert platinum with carbon or metal electrodes.
- Replacing worn electrodes in an existing Hoffman voltameter.
The glass tubes protect the fused seal, but they are still glass: tighten the screw terminals gently and never pull on the leads.
Standard Scope of Supply
You receive a pair of platinum foil electrodes, each fused into its glass tube with the internal lead, rubber stopper and screw terminal. The voltameter, electrolyte, power supply and connecting leads are not part of this item.
Packing, MOQ and Lead Time
Order one pair to service a single voltameter or several pairs for a department's stock of spares. Science Lab Supplies prices the number you name and sets out packing and delivery time on the same quotation, which can also cover voltameters and other chemistry lab equipment in India.
Science Lab Supplies, a registered exporter with an Importer-Exporter Code, can ship to buyers in Sri Lanka, Vietnam, Malaysia, Peru, Egypt and Iraq. Enquire on the contact page, add items to the enquiry cart, or see the lab tender page for institutional purchasing.
Frequently Asked Questions
Why use platinum electrodes for water electrolysis?
Platinum is inert, so it is not consumed and does not react with the oxygen formed at the anode. That keeps the gas volumes true and the electrodes usable for many practicals.
What size are the electrode tubes?
The inner tube holding the foil is 110 mm long and 8 mm in diameter; the outer covering tube is 115 mm long and 18 mm in diameter.
Who supplies the Electrode Platinum?
The pair is supplied by Science Lab Supplies of Ambala, a laboratory equipment supplier in India that also offers carbon electrodes, voltameters and stands for electrolysis practicals.
Will these fit my voltameter?
They are built for water electrolysis apparatus of the Hoffman type. Send your voltameter details through the contact page to confirm the stopper fit before ordering.
Related Electrodes and Voltameters
Platinum electrodes sit at the heart of a voltameter set-up, and labs often keep carbon or rod-type electrodes for comparison. These four Chemistry Lab items complete the electrolysis bench.
- Hoffman Voltameter With Electrodes — the apparatus these electrodes serve.
- Electrode Rod Platinum — platinum in rod form.
- Electrode Rod Carbon Voltameter — carbon electrodes for comparison.
- Electrode Connector — links leads to the terminals.
Browse the full Chemistry Lab range or all school lab equipment.
Last updated: 25 September 2026
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