Absorption Tube Manufacturer,Supplier and Exporter in India

Absorption Tube (Product Code: SLE/CH/181) is a U-form tube in heavy walled, clear borosilicate glass, 125mm long and 15mm in diameter, used to hold a solid absorbent or drying agent through which a gas stream is passed. Chemistry teachers and laboratory technicians use it to dry gases and to trap water vapour or carbon dioxide in analysis experiments. Part of our borosilicate glassware for Indian school and college laboratories, it is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala.

Specifications

Typical Use

The tube is packed with granules of a suitable absorbent, with a loose plug of glass wool at each end to keep the solid in place, and both limbs are closed with stoppers carrying short glass tubes. Clamped upright, it sits in the gas line between a generator and the point of collection or measurement, so the gas has to pass through the whole length of the packing. The U shape doubles the contact path in a small footprint, and the clear glass lets students see when the absorbent near the inlet is becoming spent.

In quantitative work the filled tube can be weighed before and after the gas passes, and the gain in mass gives the amount of water or carbon dioxide absorbed. Heavy walls make the tube robust enough for repeated packing and cleaning, and the borosilicate glass copes with warm gases and reactive absorbents. As with all chemistry lab glassware in India’s busy teaching labs, avoid sudden temperature changes, and empty, rinse and dry the tube after each use so old absorbent does not cake inside.

Manufacturer

ScienceLab glassware like this absorption tube comes from Jain Scientific Equipments Private Limited, a laboratory apparatus company in Ambala, Haryana, serving teaching and training laboratories. Background on the company is available on our company profile.

Related Chemistry Lab Equipment

Items used with the absorption tube in a typical gas drying set-up:

• Absorption Tube with Side Arms — the variant with side arms for direct tubing connections.
• Calcium Chloride Tube, Borosilicate Glass — a straight drying tube for protecting apparatus from moisture.
• Calcium Chloride — a common drying agent for packing the tube.
• Rubber Tubing — links the tube into the gas line.
• Universal Clamp — holds the tube steady on a retort stand.

Find more glassware and apparatus in our Chemistry Lab Equipment category.

Frequently Asked Questions

What are the dimensions of the Absorption Tube?
It is 125mm long with a diameter of 15mm.

What glass is it made from?
Heavy walled, clear borosilicate glass that is heat resistant and chemical resistant.

Are stoppers supplied with the tube?
Stoppers are not listed with this item. Tell us through our contact page if you would like suitable stoppers quoted.

Which absorbent should I use?
It depends on the gas. Anhydrous calcium chloride is a common choice for drying many gases but is not suitable for ammonia, so check your practical guide before packing.

How is it different from the side-arm version?
This is the plain U-form tube, closed with stoppers at the limbs; the side-arm version has side arms of about 6mm diameter for connecting tubing directly.

Can laboratories order it in quantity?
Yes. We supply glassware in institutional quantities to customers in India and international markets; include the quantity required in your enquiry.

Request a Quote

For the Absorption Tube, send the quantity and delivery details through our contact page or add it to the enquiry cart with tubing, clamps and drying agent.

Last updated: 24 September 2026