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Conical Flask, Pyrex
Conical Flask, Pyrex (Product Code: SLE/GFL/02) is a narrow-neck, graduated conical flask in Pyrex glass, heat resistant and chemical resistant, for general chemistry work. It is available in eight sizes from 25 ml to 2000 ml, including a 125 ml size that sits between the usual 100 ml and 250 ml flasks. Schools, colleges and analytical laboratories that specify Pyrex glassware choose it for titrations, solution preparation and heating. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, a lab glassware supplier in India and international markets.
Specifications
| Parameter | Detail |
|---|---|
| Material | Pyrex glass |
| Neck | Narrow |
| Capacities | 25 ml, 50 ml, 100 ml, 125 ml, 250 ml, 500 ml, 1000 ml, 2000 ml |
| Scale | Graduated |
| Resistance | Heat resistant; chemical resistant |
| Used in | Chemical laboratory |
Typical Use
The narrow neck keeps splashing and evaporation down while the flask is swirled, and it accepts a stopper or cotton plug when the contents need to be covered. That makes this flask a good receiving vessel for titrations, a container for dissolving and mixing reagents, and a vessel for gentle heating on a tripod and gauze. The 125 ml size is a convenient middle option for student titrations where 100 ml feels cramped and 250 ml is more than needed.
Treat the printed graduations as a guide rather than a measurement, heat the flask gradually, and let it cool naturally before washing. For departments standardising on a single glass type across their chemistry lab glassware in India, this Pyrex flask can sit alongside the Pyrex beakers in our range.
Supplier
This flask is supplied by Jain Scientific Equipments Private Limited, which trades as ScienceLab and is based in Ambala, Haryana, India. Alongside the glassware and apparatus it makes, the company sources items such as this one so that laboratories can order a complete list from one place. Background on the business is on our company profile.
Related Glassware Flasks
Related flasks and the accessories used with them:
- Conical Flask — borosilicate version with a wider range of sizes
- Flask, Conical, Wide Neck — for when a wider opening is easier to fill or clean
- Rubber Cork — for closing the narrow neck
- Tripod Cast Iron Varnished — supports the flask and gauze over a burner
- Flask Tongs — for handling the flask when it is hot
Our full Glassware Flasks category lists every flask type.
Frequently Asked Questions
How is this different from your standard Conical Flask?
This model is listed in Pyrex glass with a narrow neck, in sizes from 25 ml to 2000 ml including 125 ml. The standard Conical Flask is made in borosilicate glass and covers a wider size range, including larger flasks.
Is this flask made by ScienceLab?
It is listed as a supplied item: ScienceLab supplies it together with the glassware it manufactures, so it can be ordered on the same quotation.
Which sizes can I order?
25 ml, 50 ml, 100 ml, 125 ml, 250 ml, 500 ml, 1000 ml and 2000 ml.
Why choose a narrow neck?
It reduces splashing and evaporation during swirling and heating, and it is easy to close with a stopper or cotton plug.
Can I confirm the glass marking or documentation before ordering?
Yes. Please contact us with the sizes you need and any documentation your purchase process requires.
Is bulk or export supply possible?
Yes, we supply schools, colleges and distributors in India and international markets.
Request a Quote
Send the sizes and quantities through our contact page, or add the flask to the enquiry cart with the rest of your order list.
Last updated: 24 September 2026
