Round Bottom Flask with Joint Manufacturer,Supplier and Exporter in India
Product Code : EL-ELA-5407
Jlab Export is a leading Round Bottom Flask with Joint Manufacturer,and suppliers in India
Round Bottom Flask with Joint (code EL-ELA-5407) is a borosilicate glass round bottom flask with a jointed neck, used for heating, boiling, refluxing and distillation in school, college and research chemistry labs. It is built to withstand general laboratory wear and tear, comes in different capacities, and a jointless version is also available. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Type | Round bottom flask with joint |
| Material | Borosilicate glass, made to withstand general laboratory wear and tear |
| Capacities | Different capacities available — state the size you need |
| Alternative | Jointless round bottom flasks also available |
| Quality check | Each flask is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-ELA-5407 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Round Bottom Flasks?
| Model | Neck | Listed details |
|---|---|---|
| This flask (EL-ELA-5407) | With joint | Borosilicate glass; different capacities; jointless version available |
| Flasks, Round Bottom, Short Neck JLab | Short neck with socket | Each capacity listed with its socket size |
| Flask Round Bottom | Narrow neck | Borosilicate glass; four capacities, each with its own neck outside diameter |
| Narrow Neck Round Bottom Flasks, Borosilicate Glass | Narrow neck | Borosilicate glass; a range of capacities |
Choose a jointed flask when it has to connect directly to a condenser, adapter or other jointed glassware; the short-neck listing gives capacity and socket size together, while the narrow-neck flasks suit general heating with a cork or rubber stopper.
What Is the Round Bottom Flask with Joint Used For?
A round bottom spreads heat evenly and withstands boiling better than a flat base, so the flask is the standard vessel for heating and refluxing liquids, simple and fractional distillation, and preparing organic compounds in class 11 and class 12 chemistry and in college organic labs. The joint on the neck lets it connect straight to a condenser, still head or adapter with a matching joint, giving a sealed path for vapour without corks. Because it cannot stand on its own, it is held in a heating mantle or on a ring and gauze and clamped at the neck to a retort stand. Use anti-bumping granules when boiling, keep the system open to the air at one point, lightly grease or sleeve the joint so it does not seize, and let the flask cool before washing.
What to Specify When Ordering
- Capacity — the listing offers different capacities; give the sizes and quantity of each.
- Joint size — the socket size that matches your condensers and adapters, or jointless if you use stoppers.
- Quantity — the minimum order is 10 flasks; plan spares for breakage.
Frequently Asked Questions
What is the flask made of?
Borosilicate glass, made to withstand general laboratory wear and tear.
Which joint size does it have?
The listing does not state the joint size. Tell JLab the socket size your condenser or adapter uses and the flasks will be quoted to match.
Is a jointless version available?
Yes. The listing notes that jointless round bottom flasks can also be supplied; mention this in your enquiry if you use corks or rubber stoppers.
Who manufactures this flask?
JLab (Jain Laboratory Instruments Pvt Ltd) makes it at its works in Ambala, Haryana, and quotes for it directly as the manufacturer.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a borosilicate glassware and chemistry lab equipment manufacturer in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. This flask is produced at its own works instead of being bought from a trader, so schools, colleges, dealers and importers buy factory-direct, every flask is checked by eye before dispatch, and repeat orders come from the same maker. JLab exports worldwide and ships to buyers in every region — for example Hong Kong in East Asia, Honduras in Central America and the Caribbean, Samoa in Oceania, Canada in North America and Cameroon in Central Africa. Tender buyers can see the JLab lab tenders page.
Glassware and Heating for Distillation
- Flasks, Round Bottom, Short Neck JLab — short-neck flasks listed by capacity and socket size.
- Flask Round Bottom — narrow-neck borosilicate flasks for general heating and boiling.
- Liebig Condenser — a borosilicate condenser with ground-glass joints for distillation and reflux.
- Heating Mantle — an electric heater that holds the flask.
- Retort Stand Clamp — grips the flask neck on a retort stand.
Browse the full Educational Laboratory Apparatus range or the wider Laboratory Apparatus section.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart button on this page, or send the capacities, joint size, quantity (minimum 10 units) and delivery location through the contact page.
Last updated: 9 October 2026
