Drying Column
Product Code : SCL-CL-11494
Drying Column (SKU SCL-CL-11494) is a 250 ml drying column for gases with an emery (ground) nozzle. Filled with a solid drying agent, it removes water vapour from a gas stream before the gas is collected, tested or passed into another reaction, and it holds far more desiccant than a small drying tube. It is used in senior school chemistry demonstrations, B.Sc. gas practicals and technician training. Science Lab Supplies supplies it from Ambala, India to schools, colleges, training institutes, distributors and tender contractors.
Specifications
The column has a 250 ml capacity for the drying agent and is fitted with an emery nozzle, the ground finish that gives a close fit to the connecting part. Gas enters, passes up or down through the packed desiccant, and leaves dry at the other end.
| Parameter | Value |
|---|---|
| SKU | SCL-CL-11494 |
| Purpose | Drying column for gases |
| Capacity | 250 ml |
| Nozzle | Emery nozzle |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Drying Column
A drying column is placed between a gas generator and the point where the gas is used. Its 250 ml charge of desiccant, such as anhydrous calcium chloride or silica gel, dries a steady flow of gas for longer than a small tube before it needs refilling.
- Class 11–12 chemistry: drying hydrogen, oxygen or carbon dioxide prepared in the lab.
- Demonstrating that a gas carries moisture, by comparing the desiccant before and after use.
- B.Sc. inorganic practicals: supplying dry gas to a reaction tube.
- Technician and diploma training: building and maintaining a gas-handling train.
Choose a desiccant that does not react with the gas, and treat gas generation, especially of hydrogen, as a supervised activity away from open flames.
Standard Scope of Supply
The Drying Column is supplied as a single empty column with its emery nozzle, as described above. The drying agent, stoppers and connecting tubing are not included and can be added to your quotation as separate lines.
Packing, MOQ and Lead Time
Request a price for a single column or for every gas bench in the department, and the quotation will show packing, delivery time and price for the quantity requested. Gas generators, tubing and other chemistry lab equipment in India can be listed together.
Operating as a registered exporter with an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Nepal, Bangladesh, Zambia, Rwanda, South Africa and Qatar. For a quote, send your list via the contact page or the enquiry cart; public-sector buyers can refer to the lab tender page.
Frequently Asked Questions
How is a drying column different from a drying tube?
Both hold a solid desiccant to dry gases. This column holds 250 ml of drying agent, so it suits longer runs and larger gas flows than a small tube.
What does “emery nozzle” mean?
Emery refers to a ground finish on the nozzle, which gives a closer fit with the part it joins. For the exact connection size, ask us through the contact page.
Who supplies the Drying Column?
Science Lab Supplies supplies it from Ambala, India, quoting schools, colleges, training institutes and distributors in single units or in bulk.
Is the drying agent included?
No. The column is supplied empty so the laboratory can fill it with the desiccant that suits the gas being dried.
Related Gas Generation and Drying Items
A drying column sits in a line that starts at a gas generator and ends at a collecting vessel. The smaller dryer pipes, a Kipp’s apparatus, rubber tubing and a safety tube for adding acid make up that line, and all four come from the Chemistry Lab range.
- Dryer Pipes — a 145 mm drying tube for smaller set-ups.
- Kipps Apparatus — generates gas on demand.
- Rubber Tube (Laboratory) — links the column into the line.
- Safety Tubes with Bubble — acid inlet for a flask gas generator.
Browse the full Chemistry Lab range or all school lab equipment.
Last updated: 25 September 2026
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