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. Chemistry and biology teachers use it in school and college practicals. Schools, colleges, training institutes, tender contractors and distributors can order it from Science Lab Supplies, which supplies it from Ambala, India.
Specifications
The thistle funnel has a small rounded bowl opening into a wide mouth, joined to a narrow 30 cm stem. The stem is normally passed through a bored bung or held in a clamp so that its tip sits near the bottom of the flask, below the level of the liquid inside.
| Parameter | Value |
|---|---|
| SKU | LSK-LF-10407 |
| Also known as | Thistle tube |
| Stem length | 30 cm |
| Purpose | Adding liquids low down in a narrow-necked flask or container |
| 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 is used wherever a liquid must be fed into a closed or narrow-necked vessel below the surface, most often in gas-preparation set-ups and the classic osmosis experiment. It belongs in any list of school chemistry lab equipment in India and suits college practicals too.
- 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.
- B.Sc. chemistry practicals: adding reagent to an assembled apparatus without taking it apart.
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.
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, we 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. Send your list through the contact page or enquiry cart; institutions buying by tender can start at the lab tender page.
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, typically when preparing gases 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?
Science Lab Supplies supplies it from Ambala, India, quoting single pieces as well as class and tender quantities alongside other funnels and glassware.
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 Laboratory Funnels
These four funnels from the same range cover the other ways liquids are added or transferred in a chemistry lab, from open pouring to controlled drop-wise addition, so a gas-preparation or synthesis bench can be equipped on one order.
- Long stem Funnel — long-stem funnel for pouring and filtering.
- Funnel — general-purpose funnel for everyday transfers.
- Dropping Funnel Cylindrical, PTFE Stopcock — controlled drop-wise addition of reagents.
- Pressure Equalising Funnels Pear shape — addition into closed ground-joint apparatus.
Browse the full laboratory funnel range or all school lab equipment.
Last updated: 25 September 2026
