Simple Appliances for Cooking Gases Heavier than Air
Product Code : SCL-CL-11460
Simple Appliances for Cooking Gases Heavier than Air (SKU SCL-CL-11460) is a small test-tube set for preparing a gas that is denser than air and collecting it by upward displacement of air; "cooking" in the name means preparing. An N-shaped delivery tube leads the gas to the bottom of an upright collecting tube, pushing the lighter air out. Science Lab Supplies, working from Ambala, India, supplies the set to schools, colleges, distributors and tender contractors.
Specifications
Its parts are an 18 mm diameter test tube of 150 mm length for the reaction, a rubber stopper with one hole, and a 6 mm outer-diameter glass tube bent into an N shape so the outlet points down into a second, upright tube or gas jar.
| Parameter | Value |
|---|---|
| SKU | SCL-CL-11460 |
| Collection method | Upward displacement of air |
| Reaction tube | 18 mm x 150 mm test tube |
| Delivery tube | N-shaped glass, 6 mm outer diameter |
| Stopper | Rubber stopper with a hole |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for Gases Heavier than Air
The set is used to collect dense gases, most often carbon dioxide made from marble chips and dilute hydrochloric acid, in an upright tube. Students then show that the gas turns limewater milky, puts out a burning splint and can be poured like a liquid.
- NCERT Class 10 science: reaction of carbonates with acids and the test for carbon dioxide.
- NCERT Class 7 science: carbon dioxide in physical and chemical changes.
- Class 11 chemistry: choosing a collection method from a gas's density and solubility.
Some dense gases, such as chlorine and sulfur dioxide, are toxic. Prepare those only in a fume cupboard under teacher supervision, and wear eye protection when handling acids.
Standard Scope of Supply
Included are an 18 x 150 mm test tube, an N-shaped 6 mm glass delivery tube and a rubber stopper with a hole. The collecting tube or gas jar, stands and chemicals are outside the listing and can be quoted on request.
Packing, MOQ and Lead Time
Whether you want a few sets for demonstrations or one per student pair, the quotation will give packing, delivery time and price for that count. Schools building a list of school chemistry lab equipment in India can add stoppers and glassware to the same quotation.
Science Lab Supplies, registered as an exporter under an Importer-Exporter Code, can ship to buyers in Egypt, Iraq, Nigeria, Kenya, Ghana and Ethiopia. Science Lab Supplies is registered for GST (GSTIN 06ADEPJ0574F2ZU). Reach us from the contact page or the enquiry cart, and read the lab tender page for tender enquiries.
Frequently Asked Questions
Why does the delivery tube have an N shape?
The bends turn the gas path back downwards, so the outlet reaches the bottom of an upright collecting tube. The dense gas fills it from the bottom and pushes air out of the top.
What does "cooking" mean in the name?
It means preparing. The set is used to prepare and collect gases in the laboratory; it is not a cooking utensil.
Who supplies Simple Appliances for Cooking Gases Heavier than Air?
Science Lab Supplies supplies these sets from Ambala, India, directly to schools and colleges and through quotations for distributors and tender contractors.
Related Gas Preparation Sets
These four items from the Chemistry Lab range sit well with the dense-gas set: sets for collecting over water and by downward displacement, a larger generator train for chlorine and hydrogen chloride, and a clamp for holding the reaction tube. They can be quoted together.
- Simple Equipment for Gases that do not Dissolve in Water — Z-tube set for collection over water.
- Simple Appliances for Cooking Gas Lighter than Air — straight-tube set for light gases.
- Apparatus for Cooking Chlorine, Hydrogen Chloride — flask, safety tube and drying bottle for two dense gases.
- Test Tube Clamp — holds the reaction tube.
Browse the full Chemistry Lab range or all school lab equipment.
Last updated: 25 September 2026
