Glass Combustion Tube Manufacturer,Supplier and Exporter in India

Glass Combustion Tube (Product Code: SLE/CH/142) is a small, clear glass tube for heating very small quantities of material in a flame, measuring 4 mm in outer diameter, 2.5 mm in inner diameter and 53 mm in length. The glass is heat resistant and chemical resistant, so the tube copes with direct heating and with contact with the reagents used in routine small-scale tests. Chemistry students, teachers and laboratory technicians use it where only a trace of sample is needed, and it is a handy item of chemistry lab glassware for India’s school and college practical rooms. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala.

Specifications

Typical Use

Combustion tubes are used when a sample has to be heated strongly and watched closely: a few crystals are placed inside, the tube is held in the flame, and students record what happens — a change of colour, melting, gas given off, droplets condensing on the cooler part of the glass, or a residue left behind. With a bore of only 2.5 mm, the tube holds a tiny amount of material, which keeps reactions contained and reduces the quantity of chemical each student uses. That makes it a good fit for small-scale qualitative tests and for microscale teaching where many students work at once.

Warm the tube gently at first and then increase the heat, holding it with suitable tongs or a holder and pointing the open end away from everyone nearby. Heat-resistant glass still dislikes sudden temperature changes, so let the tube cool on a heat-resistant mat rather than dropping it into water. Eye protection is essential whenever glass is heated in a flame. For schools buying school chemistry lab equipment in India for a full class, it is worth ordering spare tubes, since a tube that has been strongly heated with a sample is often easier to replace than to clean.

Manufacturer

Jain Scientific Equipments Private Limited, known to customers as ScienceLab, produces laboratory glassware and teaching apparatus in Ambala, Haryana. Small glass items like this tube are usually ordered in quantity for class practicals, and the company can send them in the same consignment as larger apparatus to schools and colleges in India and international markets. See our company profile for more about the business.

Related Laboratory Equipment

Heating a combustion tube safely needs a steady flame and eye protection; the items below complete that set-up or offer other narrow glass tubes.

• Bunsen Burner — an adjustable gas flame for strong heating.
• Glass Spirit Lamp — a gentler flame for labs without a gas supply.
• Capillary Tube Set — other fine glass tubes for small-scale work.
• Borosilicate Glass Tubing — stock tubing when you need other lengths.
• Safety Goggles — eye protection whenever glass is heated.

Explore more items in our Chemistry Lab Equipment category.

Frequently Asked Questions

What are the dimensions of the tube?
Outer diameter 4 mm, inner diameter 2.5 mm and length 53 mm.

Is the tube made of borosilicate glass?
The listing describes it as clear, heat-resistant and chemical-resistant glass. If your procedure requires a particular glass grade, please confirm it with us through the contact page.

Can it go directly into a flame?
Yes, it is heat resistant and intended for heating. Warm it gradually and avoid cooling it suddenly to reduce the risk of cracking.

Can the tubes be reused?
They can be cleaned and reused if the residue comes away. Tubes charred by strong heating are usually replaced instead.

How many tubes come in a pack?
The pack quantity is not stated on this page. Tell us how many tubes you need and we will quote accordingly.

Do you supply larger quantities for schools or export?
Yes. Send the product code SLE/CH/142, the quantity and the delivery address; we supply institutions in India and international markets.

Request a Quote

For a quotation on the Glass Combustion Tube, use our contact page or add the item to the enquiry cart along with burners and safety goggles for the practical.

Last updated: 24 September 2026