Simple gas appliances that do not dissolve in water (Product Code: SCI-155/07) is simple gas collection apparatus used to prepare gases that do not dissolve readily in water and collect them over water in school chemistry practicals. Its 18 mm × 160 mm glass test tube holds the reactants, while a Z-shaped glass delivery tube in a one-hole rubber stopper carries the gas into a water-filled receiver. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
| Parameter | Detail |
|---|---|
| Test tube | Glass, 18 mm diameter × 160 mm length |
| Delivery tube | Glass, Z-shaped |
| Delivery tube outer diameter | 6–8 mm |
| Stopper | Rubber, with a hole |
| Collection method | Over water, for gases that do not dissolve in water |
| Product code | SCI-155/07 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Collecting a gas over water, also called downward displacement of water, suits gases such as oxygen and hydrogen that dissolve only slightly. A receiving tube is filled with water and inverted in a trough, the end of the Z-shaped tube is placed under its mouth, and bubbles of gas push the water out. Students can watch the gas build up, and once the first bubbles of displaced air are let go, the collected gas is not mixed with air.
The Z-bend lets the generating tube stand upright in a clamp while its outlet dips under the water in a trough beside it. Always take the delivery tube out of the water before stopping any heating, or water can be drawn back into the hot tube. Gases that dissolve easily, such as ammonia, need an air-displacement method instead, so the set sits well in a chemistry experiment kit next to apparatus for that method.
Jain Scientific Equipments Private Limited, which trades as ScienceLab, is the original equipment manufacturer (OEM) of this gas collection set. The glass parts and stopper are made up into a finished set at its own licensed factory at Saha, Ambala, Haryana, India, and the manufacturer quotes directly to schools, colleges, dealers and importers in India and international markets. Replacement delivery tubes and stoppers can be requested from the same factory. See the ScienceLab company profile for more about the business.
Apparatus that completes a gas-collection station:
See the wider range in Laboratory Equipment and Chemistry Lab Equipment.
What is included with the Simple gas appliances that do not dissolve in water?
The Simple gas appliances that do not dissolve in water consist of a glass test tube 18 mm in diameter and 160 mm long, a Z-shaped glass tube with an outer diameter of 6–8 mm, and a rubber stopper with a hole to hold the tube.
What does the product name mean?
The name Simple gas appliances that do not dissolve in water refers to the gases, not the apparatus: it is a glass test tube set for preparing gases that do not dissolve in water and collecting them over water.
Which gases can be collected with this apparatus?
The Simple gas appliances that do not dissolve in water suit gases that are only slightly soluble, such as oxygen or hydrogen, which can be collected over water. Highly soluble gases, for example ammonia or hydrogen chloride, must be collected by displacing air instead.
Why is the delivery tube Z-shaped?
In the Simple gas appliances that do not dissolve in water, the Z-shaped tube leaves the stopper, runs sideways and turns down, so the generating tube can stay upright in a clamp while the outlet sits under water below an inverted receiver.
Is a water trough included?
No trough or receiver is listed with the Simple gas appliances that do not dissolve in water; the set is the test tube, Z-shaped tube and stopper. A pneumatic trough and extra test tubes can be added to your quotation on request.
Who manufactures the Simple gas appliances that do not dissolve in water?
Jain Scientific Equipments Pvt Ltd (ScienceLab) manufactures the Simple gas appliances that do not dissolve in water as the OEM at its own licensed factory in Saha, Ambala, Haryana, India, and supplies them directly to schools, colleges, dealers and importers.
To order the Simple gas appliances that do not dissolve in water, send the number of sets and any extras through the contact page or place them in the enquiry cart. The quotation comes straight from the manufacturer in Ambala.
Last updated: 24 September 2026