Separating Funnel Gilson PTFE Stopcock
Product Code : LSK-LF-10398
Separating Funnel Gilson PTFE Stopcock (SKU LSK-LF-10398) is a Gilson-pattern separating funnel fitted with a PTFE stopcock and available with a PE stopper, used to separate two immiscible liquids and to carry out solvent extractions. It suits senior-school chemistry, B.Sc. and M.Sc. organic practicals, pharmacy labs and industrial QC. Science Lab Supplies can dispatch it from Ambala, India against quotations for universities, schools, institutes, tender contractors and distributors.
Specifications
Every specification of the PTFE-stopcock Gilson funnel is set out in the table below. In short, it pairs a grease-free PTFE stopcock with a polyethylene stopper option, comes in three stopcock bores of 2.5, 4 and 6 mm, and is made in six capacities from 50 ml up to 2000 ml.
| Specification | Value |
|---|---|
| SKU | LSK-LF-10398 |
| Pattern | Gilson |
| Stopcock type | PTFE |
| Stopcock bore | 2.5 mm, 4 mm, 6 mm |
| Stopper | Available with PE stopper |
| Capacities | 50, 100, 250, 500, 1000, 2000 ml |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Gilson Separating Funnel
The funnel is shaken with two immiscible liquids, left to settle into layers, and the lower layer is run off through the stopcock. The PTFE key needs no grease, so organic solvents stay free of grease contamination, which matters for extractions that are later weighed or analysed.
- Class 12 chemistry: separating immiscible liquids such as oil and water, with the funnel resting in a ring of a Ring Stand Set with Accessories.
- B.Sc. organic chemistry: solvent extraction and washing of an organic layer, run off into a Borosilicate Conical Flask.
- Pharmacy practicals: extracting active constituents from aqueous preparations.
- Environmental and QC labs: liquid–liquid extraction of samples before analysis.
Vent the funnel through the stopcock after each shake to release solvent vapour pressure, keeping the tip pointed away from people. Where an autoclavable plastic body is wanted instead of glass, the Separatory Funnel PP is an option.
Standard Scope of Supply
Each separating funnel comes with its PTFE stopcock fitted, in the capacity and bore you choose, and is available with a PE stopper. Ring stands, funnel holders and receiving flasks can be added to the same order so the whole extraction setup arrives on one quotation.
Packing, MOQ and Lead Time
Ask for pricing on a single funnel, a mixed set of capacities, or enough units for every student bench. The quotation covers packing, delivery time and price for exactly that quantity, and holders or other chemistry lab equipment in India from our catalogue can be included.
Registered as an exporter and holding an Importer-Exporter Code, Science Lab Supplies can ship to buyers in South Africa, Qatar, Sri Lanka, Vietnam, Malaysia and Peru. Quote the bore and capacity you want in a message on the contact page or add the funnel to your enquiry cart; bids for institutions follow the steps on the lab tender page.
Frequently Asked Questions
How does this funnel differ from the solid glass stopcock version?
This model has a PTFE stopcock, which turns without grease. The Gilson solid glass version uses a glass key in the same bores and capacities, and a glass key is normally lightly greased to seal.
Which bore should I pick?
The 2.5 mm bore gives fine control for small volumes, 4 mm suits general teaching, and 6 mm drains the larger 1000 ml and 2000 ml funnels faster. State the bore with the capacity on your enquiry.
What sizes are available?
Capacities of 50, 100, 250, 500, 1000 and 2000 ml are made, each with the PE stopper option, so small teaching extractions and larger preparative separations can use the same Gilson pattern.
Who supplies the Separating Funnel Gilson PTFE Stopcock?
Quotations for this Gilson funnel are issued by Science Lab Supplies in Ambala, India, for colleges, schools, labs and contractors that need separating funnels in one size or several.
Related Separating Funnels and Holders
These items cover the same extraction work in other shapes and stopcock types, plus the holder that supports them. Compare the Gilson glass-key model, the Squibb, pear and cylindrical shapes, the enamel-printed PTFE key model and a 500 ml glass separator to find the right fit.
- Separating Funnel Gilson Solid Glass Stopcock — solid glass stopcock in 2.5, 4 or 6 mm bore, 50 ml to 2000 ml.
- Separating Funnel Squibb Shape — with or without graduation, PTFE or solid glass stopcock.
- Separating Funnel Pear shape — includes a 125 ml size, with needle valve, PTFE or solid glass stopcock.
- Separating Funnel Cylindrical — with socket and cone, 50 ml to 1000 ml.
- Separating Funnel with PTFE Key Stopcock — printed in white enamel, bores of 2, 4 or 6 mm.
- Separator Funnel — 500 ml clear glass with a bottom stopcock valve.
- Separatory Funnel Holder — polypropylene, allows unobstructed placement of separating funnels.
Browse the full Laboratory funnel range, the Chemistry Lab range, or all school lab equipment.
Last updated: 9 October 2026
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