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Water Synthesis Apparatus (Eudiometer)
Water Synthesis Apparatus (Eudiometer) (Product Code: SCI-021/04) is a graduated glass gas tube used to demonstrate the formation of water from hydrogen and oxygen in school and college chemistry laboratories. The 16 mm diameter tube is made of resistant glass, closed at one end and fitted with an electrical conductor filament through which a spark ignites the gas mixture. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Tube | Resistant glass |
| Diameter | 16 mm |
| Graduation | 0.1 mm (as listed) |
| Ends | Closed on one side |
| Ignition | Electrical conductor filament |
| Product code | SCI-021/04 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Eudiometer Used For?
A eudiometer is a graduated tube for measuring gas volumes before and after a reaction. For water synthesis, the tube is filled with water and inverted, measured volumes of hydrogen and oxygen are introduced, and a spark across the conductor filament ignites the mixture. The gases combine to form water, and the gas left over shows that hydrogen and oxygen react in a ratio of two volumes to one.
The experiment is the natural partner to electrolysis — one splits water, the other builds it — and it illustrates Gay-Lussac’s law of combining volumes. Hydrogen–oxygen mixtures ignite violently, so it should be run as a teacher demonstration with small volumes, a securely clamped tube, a safety screen and eye protection, alongside the school’s other gas collection apparatus.
What to Specify When Ordering
- The number of eudiometer tubes required, including any spares for breakage.
- Whether a spark source and a stand with clamp should be quoted as well, since they are not listed with the tube.
- Any length or volume requirement, as only the 16 mm diameter and 0.1 mm graduation are listed.
OEM Manufacturer
ScienceLab manufactures the Water Synthesis Apparatus (Eudiometer) as the OEM (original equipment manufacturer) at its own licensed factory at Saha, Ambala, Haryana, India. ScienceLab is the trading name of Jain Scientific Equipments Private Limited, which supplies chemistry apparatus factory-direct to schools, colleges, dealers and importers in India and international markets. More is on the ScienceLab profile page.
Related Laboratory Equipment
Apparatus that supports the water synthesis experiment:
- Water Electrolysis Apparatus (Hoffman Voltameter) — produces and measures hydrogen and oxygen by splitting water.
- Induction Coil, 50mm Spark — a spark source option; confirm compatibility with us.
- Retort Stand — for clamping the tube securely during the demonstration.
- Simple gas appliances that do not dissolve in water — for collecting gases over water before measuring them.
- Simple Gas Combustion Equipment — further practicals on how gases burn.
See more in Laboratory Equipment and Chemistry Lab Equipment.
Frequently Asked Questions
What are the specifications of the Water Synthesis Apparatus (Eudiometer)?
The Water Synthesis Apparatus (Eudiometer) is a resistant glass tube of 16 mm diameter, graduated 0.1 mm as listed, closed on one side and equipped with an electrical conductor filament for igniting the gas mixture inside.
How does the eudiometer show that water is formed from hydrogen and oxygen?
In the Water Synthesis Apparatus (Eudiometer), measured volumes of hydrogen and oxygen are sparked through the conductor filament. They combine to form water, and the reduced gas volume read on the graduated tube shows the two-to-one combining ratio.
Is a spark source included with the Water Synthesis Apparatus (Eudiometer)?
A spark source is not listed with the Water Synthesis Apparatus (Eudiometer); the product data covers the tube and its conductor filament. Ask through the ScienceLab contact page if you want a spark source and stand quoted with it.
Can students use the eudiometer themselves?
The Water Synthesis Apparatus (Eudiometer) should be kept for teacher demonstrations because hydrogen and oxygen mixtures ignite violently. Use small gas volumes, clamp the tube firmly, work behind a safety screen and make sure everyone nearby wears eye protection.
What length and volume is the eudiometer tube?
The length and total volume of the Water Synthesis Apparatus (Eudiometer) tube are not given in our product data, which lists a 16 mm diameter and 0.1 mm graduation. Please confirm these dimensions with us before ordering.
Who manufactures the Water Synthesis Apparatus (Eudiometer)?
Jain Scientific Equipments Pvt Ltd, trading as ScienceLab, manufactures the Water Synthesis Apparatus (Eudiometer) as the OEM at its own licensed factory in Saha, Ambala, Haryana, India, and supplies it directly to laboratories and trade buyers.
Request a Quote
Request a quotation for the Water Synthesis Apparatus (Eudiometer) on the contact page, or add it to the enquiry cart with the Hoffman voltameter. Prices come direct from the manufacturer.
Last updated: 24 September 2026
