Flat Bottom Flask, Wide Neck (Product Code: SLE/GFL/10) is a graduated borosilicate glass flask that stands upright on the bench on its own and has a broad, beaded-rim mouth for easy filling, pouring and cleaning. Teachers and technicians use it for heating and mixing liquids, preparing solutions and assembling simple gas-preparation set-ups. It is part of the everyday chemistry lab equipment for schools and colleges manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab) in Ambala, India.
| Parameter | Detail |
|---|---|
| Material | Borosilicate glass |
| Bottom / neck | Flat bottom, wide neck |
| Rim | Beaded rim |
| Capacities | 50 ml, 100 ml, 250 ml, 500 ml, 1000 ml, 2000 ml |
| Resistance | Heat resistant and chemical resistant |
| Markings | Graduated |
| Used in | Chemical laboratories |
Because it rests steadily without a ring or clamp, this flask is handy for warming water or solutions, dissolving solids and holding reagents between steps of a practical. The wide mouth takes a two-hole stopper comfortably, so in school chemistry it is often fitted with a thistle funnel and delivery tube to prepare gases such as hydrogen or carbon dioxide. For heating, set it on a tripod stand lab set-up with a wire gauze, or on a hot plate, and warm it gradually.
The six capacities from 50 ml to 2000 ml cover everything from a single student’s reagent to a stock solution for the whole class. The graduations give an approximate reading of the contents, and the beaded rim helps the mouth resist chipping during frequent handling and washing.
Produced by Jain Scientific Equipments Private Limited, known to customers by its brand name ScienceLab. The company operates from Ambala in Haryana and serves educational and scientific buyers in India and international markets; more background is on the company profile page.
Equipment commonly used with a flat bottom flask when heating or handling liquids:
The full selection is listed under Glassware Flasks.
What is the advantage of the wide neck?
It makes it easier to add solids, pour liquids, fit larger stoppers and reach inside with a brush for cleaning.
Why does the flask have a beaded rim?
The thickened bead reinforces the mouth, which helps reduce chipping and gives a firmer edge for handling.
Which capacities are offered?
50 ml, 100 ml, 250 ml, 500 ml, 1000 ml and 2000 ml.
Can I use it under vacuum?
No. Flat-bottomed flasks are not designed to take reduced pressure; use a round bottom flask or a filter flask intended for vacuum work.
Is a stopper supplied?
Stoppers are not part of this listing. Corks and stoppers are available separately — contact us with the capacity and we will suggest a suitable size.
Can you supply a full set of sizes to a school?
Yes. Send the quantity of each capacity and the delivery address, and we will prepare a quotation for the whole set.
Ask for pricing through our contact page, or add this flask to the enquiry cart with other glassware you need.
Last updated: 24 September 2026