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Brownlee Electrolysis Apparatus
The Brownlee Electrolysis Apparatus (Product Code: SLE/EM/02) is a compact electrolysis apparatus for showing how an electric current splits water or other electrolytes into gases that collect in separate tubes. Designed for simplicity and economy, it pairs a nonconducting support carrying binding posts and 2 insulated platinum electrodes with 2 inverted 6 in test tubes and a 4 1/2 x 5 in battery jar. It is equally suited to the lecture table and to student laboratory work in school chemistry and physics, and it is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala.
Specifications
| Parameter | Detail |
|---|---|
| Design | Simple, economical electrolysis set for lecture table or student laboratory |
| Support | Nonconducting support equipped with binding posts |
| Electrodes | 2 insulated platinum electrodes, connected to the binding posts |
| Gas collection | 2 inverted test tubes, 6 in |
| Vessel | Battery jar, 4 1/2 x 5 in |
Typical Use
For the classic electrolysis of water, the battery jar is filled with a dilute electrolyte prepared by the teacher, each 6 in test tube is filled with the same solution and inverted over one platinum electrode, and a low-voltage DC source is connected to the binding posts. Bubbles rise immediately and displace the liquid in the tubes; hydrogen collects at the negative electrode in roughly twice the volume of oxygen at the positive one, which gives students a visual confirmation of the formula of water. The gases can then be tested with a lighted or glowing splint under supervision.
Because the electrodes are platinum they resist attack by the electrolyte, so the same set can be reused for comparing different salt solutions. As economical chemistry lab equipment for schools, it is a lighter alternative to a Hoffman voltameter when bench space or budget is limited. Wear eye protection, keep the supply at low voltage, disconnect before handling the tubes, and rinse the jar, tubes and electrodes with water after every use.
Manufacturer
Jain Scientific Equipments Private Limited, which trades as ScienceLab, is an Ambala, Haryana maker of chemistry, physics and electrical teaching apparatus. Electrolysis sets like this one are supplied to schools and colleges in India and international markets; visit our company profile for background.
Related Electricity Equipments
Use these items with the Brownlee set or as alternatives within the same topic:
- Hoffman Electrolysis Apparatus — graduated alternative for measuring gas volumes precisely.
- Banana/Alligator Cords — leads to connect the binding posts to your DC source.
- Holder for ‘D’ Dry Cells — a simple battery supply for low-voltage electrolysis.
- Conductivity of Solutions Apparatus — shows which liquids conduct before they are electrolysed.
- Digital Multimeter — monitors the current flowing through the cell.
More electrical apparatus is listed under Electricity Equipments.
Frequently Asked Questions
What parts make up the apparatus?
A nonconducting support with binding posts connected to 2 insulated platinum electrodes, 2 inverted 6 in test tubes and a 4 1/2 x 5 in battery jar.
Is a power supply or electrolyte included?
Neither is listed with the apparatus. Use a low-voltage DC supply or dry cells, and prepare the electrolyte solution in your laboratory.
Why platinum electrodes?
Platinum is not attacked by most electrolytes used in school work, so the electrodes stay clean and the gases produced come from the solution rather than from corroding metal.
How is it different from a Hoffman apparatus?
The Brownlee set collects gas in simple inverted test tubes and is designed for simplicity and economy, whereas a Hoffman apparatus uses graduated tubes for direct volume readings.
How should it be cleaned?
Disconnect the supply, empty the jar and tubes, rinse all parts with water and let them dry before storage; handle the electrodes gently.
What should a quotation request include?
The product code SLE/EM/02, quantity, any leads or power sources to include, and the delivery location. Send it through the contact page; we supply India and international markets.
Request a Quote
Ask for a quotation on the Brownlee Electrolysis Apparatus via our contact page, or add it to the enquiry cart together with connecting leads.
Last updated: 24 September 2026
