Evaporating Flask (Product Code: SLE/GFL/07) is a borosilicate glass flask for concentrating solutions by removing solvent, typically with gentle heating and often under reduced pressure. It is heat resistant and chemical resistant, carries graduations that show how far a solution has been reduced, and is made in 100 ml, 250 ml, 500 ml, 1000 ml and 5000 ml capacities. Research, pharmacy and chemistry laboratories use it alongside laboratory distillation apparatus in India and abroad. It is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala.
| Parameter | Detail |
|---|---|
| Type | Evaporating flask |
| Material | Borosilicate glass |
| Capacities | 100 ml, 250 ml, 500 ml, 1000 ml, 5000 ml |
| Scale | Graduated |
| Properties | Heat resistant; chemical resistant |
| Field of use | Chemical laboratory |
An evaporating flask holds the solution while its solvent is driven off, leaving a more concentrated solution or a solid residue — for example after an extraction, when a plant extract or reaction product needs to be recovered from a large volume of solvent. The flask is usually warmed in a laboratory water bath, and reducing the pressure lowers the boiling point so heat-sensitive material is not overheated. The graduations let the operator see at a glance how much liquid remains and stop at the required volume.
Fill the flask to no more than about half its volume so there is room for the liquid to boil without bumping into the connections, and warm it gradually. If the flask is to be used on an existing evaporator or jointed assembly, check the neck or joint compatibility with us first. The large 5000 ml size helps where bulk solvent has to be removed in a single run.
The Evaporating Flask comes from Jain Scientific Equipments Private Limited, which trades as ScienceLab and is based in Ambala, Haryana, India. Registered with the Ministry of Corporate Affairs under CIN U29309HR2020PTC087597, the company manufactures at its licensed factory at 449, HSIIDC Industrial Area, Saha, Ambala, under Factory Licence AMB-ONLINE-CHD-J-414. See the company profile for further details.
Equipment used in the same evaporation workflow:
Browse related shapes in our Glassware Flasks category.
What capacities are available?
100 ml, 250 ml, 500 ml, 1000 ml and 5000 ml.
Will this flask fit my rotary evaporator?
Compatibility depends on the neck or joint your evaporator uses, which is not stated in our listing. Please contact us with your model details before ordering.
How full should the flask be?
Keep it to about half full or less, so the liquid has space to boil and does not bump into the vapour path.
Can it be used under vacuum?
Evaporating flasks are commonly used at reduced pressure. Inspect the glass for scratches or cracks before each use and apply and release vacuum gradually.
Is a calibration certificate available for the graduations?
Please discuss any calibration documentation needs with us via the contact page. The graduations are intended for monitoring volume during evaporation.
What should a laboratory include in its quotation request?
Capacities and quantities, your evaporator or joint details if relevant, and the delivery address.
Do you supply these for export?
Yes, we supply laboratories and distributors in India and international markets.
Ask for pricing through our contact page, or add the flask to the enquiry cart with the other items for your evaporation set-up.
Last updated: 24 September 2026