Dropping Funnel Cylindrical, Solid Glass Stopcock
Product Code : LSK-LF-10391
Dropping Funnel Cylindrical, Solid Glass Stopcock (SKU LSK-LF-10391) is the all-glass form of the cylindrical dropping funnel: a solid glass key controls the flow of reagent into a reaction flask. It suits teaching labs where students learn slow, controlled addition during organic preparations, with capacities from 50 mL to 1000 mL. Colleges, universities, institutes, tender contractors and distributors can request it from Science Lab Supplies, whose quotations are issued in Ambala, India.
Specifications
Here the table gives every bore, capacity and stopper detail of the solid glass stopcock funnel. In short, the cylindrical body is paired with a solid glass stopcock in 2.5 mm, 4 mm or 6 mm bore, a PE stopper is available for the top, and capacities of 50, 100, 250, 500 and 1000 mL cover small and larger reactions.
| Specification | Value |
|---|---|
| SKU | LSK-LF-10391 |
| Body shape | Cylindrical |
| Stopcock type | Solid glass |
| Bore options | 2.5 mm, 4 mm, 6 mm |
| Stopper | Available with PE stopper |
| Capacities | 50, 100, 250, 500, 1000 mL |
| Number of capacities | 5 |
| 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, so the funnel fits undergraduate synthesis and pharmacy chemistry practicals well.
- B.Sc. organic chemistry: slow addition of acids or bromine solution during standard preparations, with the reaction run in a Flask Pear shape with Two Neck.
- B.Pharm pharmaceutical organic chemistry: dropwise addition in synthesis practicals.
- M.Sc. and research labs: routine additions where a greased glass key is acceptable, held on a Laboratory Retort Stand.
- Polytechnic and diploma chemical technology labs: demonstrating controlled reagent feeding.
A thin 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, and the PE stopper option is confirmed on the quotation. Flasks, clamps and stands can join the same enquiry so the whole addition assembly is priced together.
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. Let us know the capacities and bores through the contact page, or file them in the enquiry cart; bids and tenders follow the route on 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?
For any capacity and bore of this funnel, Science Lab Supplies in Ambala, India prepares a quotation addressed to the college, laboratory, contractor or distributor that sends the enquiry.
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, so a teaching lab can order several sizes at once.
Related Funnels, Flasks and Holders
A synthesis bench can carry dropping funnels in more than one stopcock type, separating funnels for the work-up, suitable flasks and a holder. The items below from the funnel range and the Laboratory Flasks range cover those needs and can be quoted with the solid glass model on one enquiry.
- Dropping Funnel Cylindrical, PTFE Stopcock — PTFE stopcock version, offered from 50 to 1000 mL with a PE stopper option.
- Dropping Funnel Cylindrical, Needle Valve Stopcock — needle valve stopcock for setting a steady drip, bores of 2.5, 4 or 6 mm.
- Separating Funnel Gilson Solid Glass Stopcock — Gilson shape with a solid glass stopcock, 50 to 2000 ml.
- Separating Funnel Pear shape — pear-shaped funnel with needle valve, PTFE or solid glass stopcock, 50 to 2000 ml.
- Separating Funnel Squibb Shape — Squibb funnel offered with or without graduation.
- Distillation Flask — side-arm distillation flask in 100, 125, 250 and 500 mL.
- Round Bottom Flask, Wide Neck — beaded-rim flask, 105 mm in diameter with a 50 mm neck.
- Separatory Funnel Holder — polypropylene holder that grips rods with two tapped wedges.
Browse the full Laboratory funnel range, the Laboratory Flasks range, or all school lab equipment.
Last updated: 9 October 2026
.jpg)
