Electrode Platinum
Product Code : LSK-CL-10246
Electrode Platinum (SKU LSK-CL-10246) is a pair of platinum foil electrodes, each fused into a protective glass tube and wired through a rubber stopper to screw terminals. They are used in water electrolysis apparatus, for example a Hoffman-type voltameter, in senior-secondary chemistry and college electrochemistry practicals. For new set-ups or as spares, the pair is available from Science Lab Supplies in Ambala, India, which supplies schools, colleges, laboratories, tender contractors and distributors.
Specifications
Both glass tubes and the foil of the platinum electrode pair are detailed in the table. In short, each electrode is a rectangular platinum foil fused into an inner glass tube 110 mm long and 8 mm across, covered by an outer tube 115 mm long and 18 mm across, with an internal lead running through a rubber stopper to a screw terminal.
| Specification | Value |
|---|---|
| SKU | LSK-CL-10246 |
| Quantity | Pair of electrodes |
| Electrode metal | Platinum |
| Electrode form | Rectangular foil |
| Foil design | Exposes as much metal as possible to the water |
| Mounting | Fused into a protective glass tube |
| Inner glass tube length | 110 mm |
| Inner glass tube diameter | 8 mm |
| Outer glass tube length | 115 mm |
| Outer glass tube diameter | 18 mm |
| Connection lead | Internal, running through the tube |
| Stopper | Rubber |
| Terminals | 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, with Sodium Sulphate added to make the water conduct.
- Class 12 chemistry: electrolysis with inert electrodes and Faraday's laws, driven by a High-Current DC Power Supply.
- B.Sc. electrochemistry: comparing inert platinum with carbon or metal electrodes.
- Replacing electrodes in an existing water-electrolysis apparatus once the stopper fit is confirmed.
The glass tubes protect the fused seal, but they are still glass: tighten the screw terminals gently, never pull on the leads, and wear Safety Goggles, Polycarbonate, 12 pcs when acidic electrolytes are used.
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 included, and any of them can be added to the same quotation.
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. Electrode orders can be raised by writing on the contact page or adding the pair to the enquiry cart, and departments buying through tenders can consult the lab tender page.
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?
Science Lab Supplies, a laboratory equipment supplier in India based in Ambala, supplies the pair and can also quote carbon electrodes, voltameters and stands for electrolysis practicals.
Will these fit my voltameter?
Fit depends on the apparatus. Send your voltameter's details and stopper size through the contact page, and the fit will be confirmed before the quotation is issued.
Related Electrodes and Voltameters
Platinum electrodes sit at the heart of a voltameter set-up, and carbon or metal rod electrodes allow comparison of electrode materials. These Chemistry Lab items supply the voltameters, stand and alternative electrodes for a complete electrolysis bench.
- Hoffman Voltameter With Electrodes — glass voltameter needing a 12 V supply, delivered in a well-protected packing case with carbon and platinum electrodes.
- Hoffman Voltameter Stand — metal stand and support clamp with a 600 mm rod.
- Voltameter — base-mounted unit with terminals, platinum electrodes and two 10 ml graduated test tubes.
- Electrode Rod Platinum — 100 x 10 mm rod in a glass tube whose end carries a platinum leaf.
- Electrode Rod Carbon Voltameter — carbon rod of 100 x 10 mm sealed in a glass tube with a terminal.
- Electrode Rod — 100 x 10 mm rods with terminal in aluminium, carbon, copper, iron or zinc.
- Electrolysis Cells — gases collect in two 75 x 10 mm test tubes, with contact through crocodile clips.
Browse the full Chemistry Lab range, the Lab Chemicals range for electrolytes, or all school lab equipment.
Last updated: 9 October 2026
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