Voltameter
Product Code : LSK-CL-10252
Voltameter (SKU LSK-CL-10252) is an electrolysis cell for splitting acidified water into hydrogen and oxygen and collecting each gas in its own graduated tube. Students use it to compare the volumes of gas produced at the two electrodes and to study electrolysis quantitatively. Science Lab Supplies sources and dispatches the cell from its Ambala base in India for school, college, distributor and tender orders.
Specifications
The table lists each specification of this platinum-electrode voltameter. In short, the cell is mounted on a base fitted with terminals for the power leads, and each platinum electrode is covered by a graduated test tube of 10 ml capacity, so the gas collected above it is read directly from the markings.
| Specification | Value |
|---|---|
| SKU | LSK-CL-10252 |
| Mounting | On a base |
| Electrical connection | Terminals on the base |
| Electrode material | Platinum |
| Gas collection | Two graduated test tubes |
| Tube capacity | 10 ml each |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Voltameter
The voltameter demonstrates that passing a direct current through acidified water releases hydrogen at the cathode and oxygen at the anode in a volume ratio close to two to one. Platinum electrodes resist attack, so the same cell can be reused for many practical sessions without electrode corrosion spoiling the gas.
- Class 10 science: decomposition of water by electricity as a chemical reaction, with hydrogen and oxygen identified using Wood Splints.
- Class 12 chemistry: electrolysis and Faraday's laws, relating charge passed to gas volume, with the current read on an Ammeter.
- B.Sc. physical chemistry and physics labs: electrochemical equivalent and electrolysis practicals.
A low-voltage DC source, such as the Power Supply Unit/ Block for DC with its regulated 0–9 V output, and a dilute acid electrolyte are needed. Hydrogen is flammable, so keep flames away except for a supervised splint test.
Standard Scope of Supply
The voltameter is supplied as a single unit as described above: the base with terminals, the platinum electrodes and two 10 ml graduated test tubes. A power supply and electrolyte are not part of the unit, and any optional accessories are named on the quotation.
Packing, MOQ and Lead Time
You may order one voltameter for a demonstration bench or enough for every group in a practical class. The quotation you receive gives packing, delivery time and price for that number, and a DC power supply or spare electrodes can be quoted alongside.
Science Lab Supplies is a registered exporter holding an Importer-Exporter Code and can ship to buyers in Nigeria, Kenya, Ghana, Ethiopia, Tanzania and Uganda. Science Lab Supplies is registered for GST (GSTIN 06ADEPJ0574F2ZU). Send electrolysis requirements through the contact page, build a list of cells and electrodes in the enquiry cart, or submit bid documents via the lab tender page.
Frequently Asked Questions
What are the electrodes of this voltameter made of?
The electrodes are platinum. Platinum does not dissolve or react during water electrolysis, so the gases collected are hydrogen and oxygen rather than products of electrode corrosion.
How much gas can each tube collect?
Each of the two graduated test tubes holds 10 ml, which is enough to see the roughly two-to-one hydrogen to oxygen ratio within a single class period.
Who supplies the Voltameter?
Science Lab Supplies handles this unit from Ambala, India. You deal directly with its team for the quotation, packing details and dispatch, whether you need one cell or a class quantity.
How is it different from the Hoffman Voltameter With Electrodes?
This unit sits on a base and collects gas in two 10 ml graduated tubes over platinum electrodes. The Hoffman model is a glass unit with two connected limbs of about 50 ml each, carbon and platinum electrodes, and a 12 V supply requirement.
Related Electrolysis Apparatus and Electrodes
These items support the same electrolysis topic: Hoffman-type voltameters and a stand for larger demonstrations, spare platinum electrodes, student electrolysis kits and cells, and a wall chart that summarises the process. Each one can be added to the same quotation as the voltameter.
- Hoffman Voltameter With Electrodes — two connected limbs graduated 2–50 ml, supplied with two carbon and two platinum electrodes.
- Hoffman Voltameter Stand — metal stand with support clamp and a 600 mm rod.
- Apparatus for Water Electrolysis (Hoffman Voltmeter) — three glass tubes, 600 mm high, with 25 ml tubes and ground glass taps.
- Electrode Rod Platinum — 100 x 10 mm rod in a glass tube with terminal, ending in a platinum leaf.
- Electrode Platinum — foil shaped to expose as much platinum as possible to the water, held in an inner glass tube 110 x 8 mm.
- Electrolysis Kit — two insulated stainless steel electrodes, large-clip leads and rubber gaskets; glassware not included.
- Electrolysis Cells — 75 x 25 mm glass cylinder with two carbon electrodes and 75 x 10 mm collecting tubes.
- Electrolytic Breakdown — laminated 70 x 100 cm wall chart.
Browse the full Chemistry Lab range, the Lab Meters range for current measurement, or all school lab equipment.
Last updated: 9 October 2026
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