Thistle Funnel
Product Code : LSK-LF-10407
Thistle Funnel (SKU LSK-LF-10407), also called a thistle tube, is a long-stemmed funnel with a thistle-shaped bowl for adding liquids to a narrow-necked flask or other container. Its 30 cm stem delivers liquid low down in the vessel, where an ordinary or dropping funnel would be too short. It suits chemistry and biology practicals in schools and colleges. Quotations for it are issued from Ambala, India, by Science Lab Supplies, for single benches, whole classes, training institutes and tender buyers alike.
Specifications
The table below gives each detail of this 30 cm thistle funnel. In short, a thistle-shaped bowl sits on top of a long, narrow stem; the stem can be passed through a bored bung or held in a clamp so that its tip reaches near the bottom of the flask, below the liquid inside.
| Specification | Value |
|---|---|
| SKU | LSK-LF-10407 |
| Also known as | Thistle tube |
| Stem length | 30 cm (300 mm) |
| Purpose | Adding liquids to a narrow-necked flask or other container |
| Delivery point | Low down in the flask, where a funnel or dropping funnel stem would be too short |
| Mounting | Passed through a bung or clamped in place |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Thistle Funnel
This funnel feeds a liquid into a closed or narrow-necked vessel below the surface, which makes it suitable for gas-preparation set-ups and the classic osmosis experiment. It fits school chemistry lab equipment in India for secondary classes and also serves college practicals where reagent must be added to an assembled apparatus.
- Secondary-school chemistry: preparing gases such as hydrogen or carbon dioxide, with acid poured through the funnel into a flask fitted with a delivery tube.
- Class 11 biology: the thistle funnel osmoscope, where a membrane tied over the mouth shows osmosis as liquid rises up the stem; the stem can be held on a Laboratory Retort Stand.
- B.Sc. chemistry practicals: adding reagent without dismantling the set-up, with the funnel gripped in a Three Prong Glassware Holding Clamp.
Standard Scope of Supply
The Thistle Funnel is supplied as a single unit with the 30 cm stem described above. Bungs, clamps, flasks and delivery tubes are separate items, and any of them can be added to the quotation if your practical set-up needs them, so the whole gas-preparation bench can be priced together.
Packing, MOQ and Lead Time
Order one funnel for a demonstration bench or a full class quantity for student practicals; the quotation lists packing, delivery time and price for exactly that number. As a laboratory glassware supplier in India, Science Lab Supplies can also price flasks, bungs and other funnels on the same quotation.
Holding an Importer-Exporter Code as a registered exporter, Science Lab Supplies is able to ship to buyers in Kenya, Ghana, Ethiopia, Tanzania, Uganda and the UAE. To get a price for your gas-preparation or osmosis kit, message the team on the contact page, drop the funnel into the enquiry cart, or open the lab tender page when a formal bid is involved.
Frequently Asked Questions
What is a thistle funnel used for?
It adds liquid into a narrow-necked flask or container low down in the vessel, for example when preparing a gas or setting up an osmosis demonstration, where a normal funnel stem would be too short.
How long is the stem on this model?
The stem is 30 cm long, enough to pass through a bung and reach near the bottom of the flask so the tip stays under the liquid.
Who supplies the Thistle Funnel?
The Ambala office of Science Lab Supplies prepares quotations for this funnel, from a single piece for a teacher's bench to class and tender quantities, and can include matching flasks and stoppers on the same offer.
Why must the stem dip below the liquid?
If the tip sits above the liquid, gas made in the flask escapes up through the funnel instead of the delivery tube. A submerged tip forms a liquid seal while still letting you pour in more acid.
Related Funnels, Flasks and Fittings
These funnels, flasks and fittings from the funnel and chemistry ranges cover the other ways a liquid is added to a vessel and the parts needed to close and connect a gas-preparation flask, so the complete set-up can be quoted together.
- Long stem Funnel — borosilicate funnel with a 60° bowl, a stem of about 150 mm and 8 mm stem O.D.
- Dropping Funnel Cylindrical, PTFE Stopcock — PTFE stopcock in 2.5, 4 or 6 mm bore, from 50 to 1000 ml.
- Pressure Equalising Funnels Pear shape — socket and PTFE key stopcock, in 100, 250 and 500 ml.
- Distillation Pot with Side Funnel 250ml — narrow-mouth borosilicate vessel with a 175 mm side pipe.
- Flat-Bottomed Flasks 250ml — 250 ml glass flask with a flat bottom and long mouth.
- Rubber Stoppers of Various Diameters with Holes — holed rubber stoppers with 11, 13, 14 and 15 mm bottom diameters.
- Rubber Tube (Laboratory) — natural rubber hose, 6 mm inner and 9 mm outer diameter.
Browse the full laboratory funnel range, the Chemistry Lab range, or all school lab equipment.
Last updated: 9 October 2026
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