Hofmann Voltameter with Platinum Electrodes

The Hofmann Voltameter demonstrates electrolysis through a visually engaging design featuring three upright glass tubes and platinum electrodes. When current is applied to an ionic solution, it separates water into hydrogen and oxygen gases, which collect in the outer tubes.

A powerful teaching tool in chemistry and electrolysis, this voltameter is perfect for senior science students.

Educational Benefits

• Demonstrates decomposition of water via electrolysis
• Reinforces redox reaction and gas laws
• Encourages use of scientific observation and data logging

Classroom Ideas

• Use in a lesson on the properties of water and hydrogen
• Measure gas volumes and compare molar ratios
• Pair with a solar cell for sustainable energy demos

Specifications

• Electrodes: Large platinum
• Cylinder height: 410mm
• Capacity: 200ml approx.
• Gas tube capacity: 70ml (each)
• Made from: Glass
• Graduations: 1ml intervals
• Stand not included
• Weight: 220g