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 simple 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. Schools, colleges, distributors and tender contractors can have the set quoted and shipped by Science Lab Supplies from Ambala, India.
Specifications
The N-tube set for dense gases is specified row by row in the table. In short, 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 so the outlet points down into an upright tube or gas jar.
| Specification | Value |
|---|---|
| SKU | SCL-CL-11460 |
| Collection method | Upward displacement of air |
| Test tube diameter | 18 mm |
| Test tube length | 150 mm |
| Delivery tube material | Glass |
| Delivery tube outer diameter | 6 mm |
| Delivery tube shape | N-shaped |
| 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, for example 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 from one tube to another.
- NCERT Class 10 science: reaction of carbonates with acids and the test for carbon dioxide, collected in an upright 18 x 180 mm Test Piece tube.
- 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, with the reaction tube held on a Laboratory Stand.
Some dense gases, such as chlorine and sulfur dioxide, are toxic. Prepare those only in a fume cupboard under teacher supervision, and wear Protective Glass eyewear 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 not included and can be quoted on request alongside the set for your laboratory.
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). Pricing for one pair of students or a whole year group begins with the contact page or the enquiry cart; tendered purchases follow the lab tender page.
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 chemistry laboratory; it is not a cooking utensil and should never be used with food.
Who supplies Simple Appliances for Cooking Gases Heavier than Air?
Science Lab Supplies is the Ambala, India source for these sets. Schools and colleges can order straight from it, and distributors and tender contractors receive written quotations for their quantities.
Related Gas Preparation Sets
These Chemistry Lab items go with the dense-gas set: companion sets for other collection methods, gas generators and a larger train for chlorine and hydrogen chloride, plus a holder, a deflagrating spoon and splints for the tests that follow. They can be quoted together.
- Simple Equipment for Gases that do not Dissolve in Water — Z-bent 6 mm tube through a holed stopper for collection over water.
- Simple Appliances for Cooking Gas Lighter than Air — same 18 x 150 mm tube with a straight 6 mm glass tube.
- Apparatus for Cooking Chlorine, Hydrogen Chloride — 250 ml flask, two-bulb safety tube and 250 ml drying bottle.
- Kipps Apparatus — makes carbon dioxide from acid and granular calcium carbonate without heating.
- Simple Gas Preparation Kit — thistle funnel, delivery tube and tubing connector for gases such as carbon dioxide.
- Test Tube Clamp — wooden clamp for holding a tube that should not be touched.
- Deflagrating Spoon — 35 cm spoon with a 20 mm cup that lowers chemicals into a gas jar.
- Wood Splints — splints for lighting burners and for gas testing.
Browse the full Chemistry Lab range, the Lab Glassware range, or all school lab equipment.
Last updated: 9 October 2026
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