Dropping Funnel Cylindrical, Solid Glass Stopcock
Product Code : LSK-LF-10391
Dropping Funnel Cylindrical, Solid Glass Stopcock (SKU LSK-LF-10391) is the traditional all-glass form of the cylindrical dropping funnel: a solid glass key controls the flow of reagent into a reaction flask. It is a familiar item in teaching labs, where students learn slow, controlled addition during organic preparations. Capacities run from 50 mL to 1000 mL. Colleges, universities, institutes, tender contractors and distributors can source it from Science Lab Supplies, which supplies it from Ambala, India.
Specifications
The cylindrical body is paired with a solid glass stopcock, with a choice of 2.5 mm, 4 mm or 6 mm bore. The funnel is available with a PE stopper for the top, and is listed in 50, 100, 250, 500 and 1000 mL capacities for small and larger reactions.
| Parameter | Value |
|---|---|
| SKU | LSK-LF-10391 |
| Body shape | Cylindrical |
| Stopcock type | Solid glass |
| Bore | 2.5 mm, 4 mm, 6 mm |
| Stopper | Available with PE stopper |
| Capacities | 50, 100, 250, 500, 1000 mL |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Solid Glass Stopcock Dropping Funnel
Clamped above a reaction flask, the funnel adds a liquid reagent a few drops at a time while the mixture is stirred or cooled. The solid glass stopcock is simple to clean and suits aqueous and many general reagents, which is why it appears widely in undergraduate synthesis and pharmacy chemistry practicals.
- B.Sc. organic chemistry: slow addition of acids or bromine solution during standard preparations.
- B.Pharm pharmaceutical organic chemistry: dropwise addition in synthesis practicals.
- M.Sc. and research labs: routine additions where a greased glass key is acceptable.
- Polytechnic and diploma chemical technology labs: demonstrating controlled reagent feeding.
A light film of stopcock grease keeps the glass key turning freely; remove the key and clean it after use, and avoid leaving strong alkalis in the funnel.
Standard Scope of Supply
The funnel is supplied as a single unit with its solid glass stopcock, in the capacity and bore ordered; the PE stopper and any optional accessories are confirmed on the quotation. Flasks, clamps and stands are not included.
Packing, MOQ and Lead Time
You can get a quotation for a single funnel or for a complete set for a teaching lab. It gives the packing, delivery time and price for the chosen capacities and bores, and flasks, separating funnels or other chemistry lab equipment can appear on the same quotation.
As a registered exporter holding an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Saudi Arabia, Oman, the Philippines, Nepal, Bangladesh and Zambia. Put your request through the contact page or the enquiry cart; for bids and tenders, visit the lab tender page.
Frequently Asked Questions
How is a solid glass stopcock maintained?
Apply a thin film of stopcock grease so the key turns smoothly and seals well. Take the key out for cleaning after use and do not store strong alkaline solutions in the funnel.
When is the solid glass version a good choice?
It suits teaching labs and general reactions where a lightly greased key is acceptable. For grease-free work choose the PTFE version; for precise rate control choose the needle valve version.
Who supplies the Dropping Funnel Cylindrical, Solid Glass Stopcock?
This funnel is supplied from Ambala, India by Science Lab Supplies, which issues quotations to colleges, laboratories, contractors and distributors for any capacity and bore.
Can funnels of different capacities be quoted together?
Yes. List each capacity and bore with its quantity, and the quotation shows every line separately with packing and delivery time.
Related Dropping and Separating Funnels
A synthesis bench usually carries dropping funnels in more than one stopcock type, along with funnels for separating the reaction mixture afterwards. These four items from the funnel range cover those needs and can be quoted with the solid glass model.
- Dropping Funnel Cylindrical, PTFE Stopcock — grease-free PTFE stopcock version.
- Dropping Funnel Cylindrical, Needle Valve Stopcock — needle valve for fine flow control.
- Pressure Equalising Funnels Pear shape — pear-shaped pressure-equalising funnel.
- Separating Funnel Cylindrical — for separating immiscible liquids after reaction.
Browse the full Laboratory funnel range or all school lab equipment.
Last updated: 25 September 2026
