Simple Devices for Studying the Properties of Substances

Product Code : SCL-CL-11458

Simple Devices for Studying the Properties of Substances (SKU SCL-CL-11458) is a basic test-tube set: an 18 x 150 mm test tube closed with a holed rubber stopper, through which an L-shaped 6 mm glass tube leads any gas or vapour away. Students heat or react small samples and pass the product into a second tube for testing. For everyday chemistry practicals, Science Lab Supplies provides the set from Ambala, India, to schools and colleges and prices bulk lots for distributors and tender contractors.

Specifications

Below, each dimension of the L-tube test set is given as a separate table row. In short, the device has three parts: a glass test tube 18 mm in diameter and 150 mm long, a rubber stopper with one hole, and a 6 mm outer-diameter glass tube bent into an L that directs gas sideways out of the tube.

Applications and Experiments for the Properties of Substances Set

This set is used for small-scale tests where a substance is heated or reacted and the gas given off is examined, for example passing carbon dioxide into limewater. The L-shaped outlet makes it easy to dip the tube end into a reagent held in a second test tube.

• NCERT Class 7 science: physical and chemical changes, including the limewater test for carbon dioxide, with the limewater in a 16 x 150 mm Test Piece tube.
• NCERT Class 10 science: thermal decomposition and the reaction of carbonates with acids.
• Class 11 chemistry: tests for gases in salt analysis.

Loosen the stopper or remove the delivery tube from the reagent before heating stops, so liquid is not drawn back into the hot tube. Use a holder and eye protection when heating.

Standard Scope of Supply

You receive one 18 x 150 mm test tube, one rubber stopper with a hole, and one L-shaped glass tube of 6 mm outer diameter. A test-tube holder, burner and reagents are not included; spare Rubber Stoppers of Various Diameters with Holes can be added.

Packing, MOQ and Lead Time

The set can be quoted singly or in class quantities. Tell us how many you need and the quotation will show the packing, delivery time and price for that number, with holders, burners or spare stoppers listed alongside if you ask for them.

Using its Importer-Exporter Code as a registered exporter, Science Lab Supplies can ship to buyers in Malaysia, Peru, Egypt, Iraq, Nigeria and Kenya. State the class size on the contact page or place the sets in the enquiry cart, and a quotation follows; public-sector buyers can read the lab tender page for bid support.

Frequently Asked Questions

What is the L-shaped tube used for?
It carries gas from the stoppered test tube sideways and down, so the end can be dipped into limewater or another test reagent held in a second tube beside the first.

Can the test tube be heated?
Small samples can be heated in the test tube over a spirit lamp or a Beck Bunsen burner. Heat gently, point the mouth away from people and hold the tube with a holder.

Who supplies Simple Devices for Studying the Properties of Substances?
These sets come from Science Lab Supplies in Ambala, India. The company quotes schools and colleges for class sets and prepares bulk pricing for distributors and tender contractors.

Is this suitable for school chemistry lab equipment in India?
Yes. It is a simple glassware set for small-scale tests at school level and can be quoted with other Chemistry Lab items on one order.

Related Test-Tube Sets and Accessories

These Chemistry Lab and Clinical Laboratory items work with this set: holders, a lamp, a rack and a brush for the tube, tubing and a cutter for making new delivery tubes, and sister test-tube sets for collecting or burning gases. All can go on the same quotation.

• Test Tube Clamp — wooden holder for a test tube that is too hot to touch.
• Alcohol Lamp — round lamp holding 150 ml, in glass with a high annealing point and low linear expansion.
• Test Tube Rack SS — stainless steel rack with 24 positions for 18 mm tubes.
• Brush for Washing Test Tubes — soft nylon brush, 12 mm in diameter.
• Glass Tubes of Different Diameters — 100 mm lengths in six bands from 5–6 mm to 12–13 mm.
• Equipment for Cutting Glass Pipes — spring-loaded metal cutter that scores tubing of 4 to 12 mm.
• Simple Equipment for Gases that do not Dissolve in Water — the same size of tube with a Z-shaped delivery tube.
• Simple Appliances for Burning Gases — 18 x 150 mm test tube with a 6 mm glass tube for burning gases.

Browse the full Chemistry Lab range, the Clinical Laboratory range, or all school lab equipment.

Last updated: 9 October 2026