Marked Jars (Tarred) 250ml
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Product Code : SCL-CL-11519
Marked Jars (Tarred) 250ml (SKU SCL-CL-11519) is a graduated 250 ml glass flask with a frosted stopper, calibrated (tared) so that its marks show the volume it contains. Chemistry teachers and lab technicians use it to prepare and keep medium batches of solution, such as dilute acids, alkalis and salt solutions for a class practical. Science Lab Supplies, based in Ambala, India, supplies it to schools, colleges, training institutes, tender contractors and distributors.
Specifications
This is a clear glass flask of 250 ml capacity with graduations on the body and a frosted stopper that closes the neck. The description rates the glass as heat resistant and chemical resistant, so warm solutions can be prepared in it and common laboratory reagents held without attacking the glass.
| Parameter | Value |
|---|---|
| SKU | SCL-CL-11519 |
| Capacity | 250 ml |
| Body | Glass flask, clear |
| Markings | Graduated (tared) |
| Stopper | Frosted stopper |
| Properties | Heat resistant, chemical resistant |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Marked Jars (Tarred) 250ml
The 250 ml marked flask is used to dilute, mix and store a class-sized volume of solution in one stoppered vessel. It is suited to solution preparation for CBSE/NCERT Class 9–12 chemistry, B.Sc. practicals and the reagent-preparation tasks taught in laboratory technician and ITI laboratory assistant courses.
- Preparing dilute hydrochloric acid, sodium hydroxide or salt solutions for a whole class.
- Class 12 chemistry: making up solutions used in titration and chemical kinetics practicals.
- Mixing solutions by inverting the stoppered flask, then keeping them closed until the next lesson.
Standard Scope of Supply
The Marked Jars (Tarred) 250ml comes as one graduated glass flask with its frosted stopper, matching the specification above. Funnels, pipettes and wash bottles used when filling it are sold separately and can be itemised on the same quotation as the flasks.
Packing, MOQ and Lead Time
From a single flask to a full set for a preparation room, Science Lab Supplies prepares a quotation for the quantity you need. It gives the packing, delivery time and price, and the 100 ml and 500 ml marked sizes can be added so the whole order is priced together.
Science Lab Supplies can ship to buyers in Rwanda, South Africa, Qatar, Sri Lanka, Vietnam and Malaysia as an exporter holding an Importer-Exporter Code. Build a list in the enquiry cart, send questions through the contact page, or read how tenders are quoted on the lab tender page.
Frequently Asked Questions
Is this 250 ml item a flask or a jar?
The description lists it as a glass flask with a frosted stopper. Jars is the catalogue term; in the lab it is used as a graduated, stoppered flask for preparing solutions.
Can warm solutions be prepared in it?
The glass is listed as heat resistant, so solutions that warm up on dissolving can be made in it. Remove the stopper while the contents are warm and let them cool before reading the level.
Who supplies the Marked Jars (Tarred) 250ml?
These flasks are supplied by Science Lab Supplies from Ambala, India to schools, colleges and institutes, and to distributors or contractors who handle laboratory orders for others.
How should the frosted stopper be cared for?
Keep each stopper with its own flask, rinse and dry it after use, and store the flask with a small paper strip in the neck so the stopper does not stick.
Related Measuring Glassware
Preparing solutions accurately calls for measuring vessels of several sizes and a cylinder for measuring liquids first. These items from the Chemistry Lab range complement the 250 ml marked flask and are often ordered on the same quotation by schools and colleges.
- Pots Marked (Tarred) 100ml — smaller marked bottle with frosted cap.
- Marked Pot (Tarred) 500ml — twice the capacity for stock solutions.
- Measuring Cylinder 250ml — measures liquids of the same volume.
- Graduated Flask with Fixed Stoppers — a related stoppered flask listing.
Browse the full Chemistry Lab range or all school lab equipment.
Last updated: 25 September 2026
