Round-bottom Flask
Product Code : SCL-CL-11910
Round-bottom Flask (SKU SCL-CL-11910) is a boiling flask with a spherical body and a 14/29 joint section, made from heat- and chemical-resistant material. The rounded shape spreads heat evenly, which makes the flask suitable for heating, distillation and reflux in school, college and research chemistry labs. Science Lab Supplies, from its Ambala base in India, can quote it for colleges, schools, training institutes, tender contractors and distributors.
Specifications
The round-bottom flask’s joint, material and uses are entered as separate rows in the table below. In short, the neck is finished to the 14/29 section size, so it connects directly to condensers and adapters of the same taper, and the heat- and chemical-resistant material handles boiling liquids and common laboratory reagents.
| Specification | Value |
|---|---|
| SKU | SCL-CL-11910 |
| Also known as | RB flask, boiling flask |
| Body | Round (spherical) bottom |
| Section (joint) size | 14/29 |
| Material properties | Heat-resistant and chemical-resistant |
| Application areas | Chemistry labs, research facilities, educational institutions and general laboratory work |
| Capacity | Confirmed on the quotation |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Round-bottom Flask
A round-bottom flask is heated in a mantle or bath while its joint carries a condenser for distillation or reflux. It suits Class 11–12 organic chemistry demonstrations, B.Sc. and B.Pharm. synthesis practicals, and chemical-technician training that covers distillation, purification and the assembly of joint-connected glassware.
- Simple distillation: boiling a liquid under a condenser, with the vapour temperature checked on one of the Laboratory Thermometers.
- B.Sc. organic chemistry: heating a reaction mixture under reflux, with cooling water carried by a Rubber Tube (Laboratory).
- Solvent recovery: distilling off a solvent after an extraction.
- Technician training: assembling joint-connected glassware safely on a Laboratory Stand.
Always rest the flask in a ring or cork stand and clamp it at the neck, add boiling chips before heating, and never fill it more than about half full for distillation.
Standard Scope of Supply
Each Round-bottom Flask is supplied as one flask with a 14/29 joint section, as described above. Condensers, adapters, heaters and clamps with matching joints can be quoted with the flask, so a complete distillation or reflux assembly arrives together.
Packing, MOQ and Lead Time
You may ask for one flask or a full set for a distillation lab. The quotation states packing, delivery time and price for the quantity requested, and a condenser, adapter and heater with matching joints can be placed on the same quote.
Backed by an Importer-Exporter Code, Science Lab Supplies is able to ship to buyers in Oman, the Philippines, Nepal, Bangladesh, Zambia and Rwanda. State the flask volume you want and the number of benches on the contact page, or add the flask to the enquiry cart with its condenser; tendered purchases follow the lab tender page.
Frequently Asked Questions
What joint size does the flask have?
It has a 14/29 joint section, so it fits the 14/29 Liebig condenser and adapters in the same range without sleeves or reducers, keeping the assembly simple.
What capacity is the flask?
The capacity is confirmed on the quotation. Tell us the volume you need through the contact page, and the quote will state the flask size supplied with the 14/29 joint.
Why use a round-bottom rather than a flat-bottomed flask for heating?
The spherical shape spreads heat evenly and copes with boiling better than a flat base, which is why it is chosen for distillation and reflux work.
Who supplies the Round-bottom Flask?
Quotations come from Science Lab Supplies in Ambala, India, which lists the flask in its laboratory distillation apparatus in India range and can match it with condensers and heaters for schools, colleges and tenders.
Related Flasks and Distillation Items
The flask is the starting point of a distillation or reflux train, followed by a condenser and adapter and heated by a flask heater, and other flask shapes suit other volumes. These items from the Chemistry Lab and Laboratory Flasks ranges build that train and can be quoted on one enquiry.
- Liebig Condenser for Distillation of Water — 450 mm molybdenum glass condenser with a 14/29 joint.
- Flask Electric Heater — insulated heater with inner size 170 x 170 x 90 for a 500 ml flask.
- Adapter (Alunge) — heat- and chemical-resistant refractory glass adapter, 150 mm long.
- Round Bottom Pots (Spherical Flasks) — 500 ml round-bottom glass flask with a long mouth.
- Round Bottom Flask, Narrow Neck — borosilicate flask with rimmed neck, 260 mm high.
- Round Bottom Flask, Wide Neck — 105 mm diameter flask with a 50 mm beaded neck.
- Distillation Pot with Side Funnel 250ml — narrow-mouth borosilicate flask with a 175 mm side pipe.
Browse the full Chemistry Lab range, the Laboratory Flasks range, or all school lab equipment.
Last updated: 9 October 2026
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