Thistle Funnel
Product Code : EL-F-10218
Quick answer: A Thistle Funnel is used to add liquid to a narrow-necked flask or vessel, and is particularly suited to additions that need to reach low down inside the flask — below the level a standard or dropping funnel's stem could reach. It has a 30cm stem and is typically passed through a bung or clamped in place.
| Specification | Detail |
|---|---|
| Product | Thistle Funnel |
| Stem length | 30cm |
| Typical mounting | Passed through a bung, or clamped in place |
| Typical use | Adding liquid low down inside a narrow-necked flask or vessel |
Why the Long Stem Matters
In set-ups such as gas-generation reactions, where acid or another reagent needs to be added below the surface of the liquid already in the flask rather than dripped in from above, a standard or dropping funnel's shorter stem often cannot reach far enough. The Thistle Funnel's 30cm stem is built for exactly this job, delivering the liquid low down in the vessel while the flared thistle-shaped top makes it easy to pour into without spilling. It is normally fitted through a bung in a multi-neck flask, or held in place with a stand clamp, as part of a larger reaction assembly.
Frequently Asked Questions
What is a Thistle Funnel used for?
It is used to add liquid to a narrow-necked flask or vessel, especially where the addition needs to reach low down inside the flask, such as in gas-generation set-ups.
How long is the stem?
30cm, long enough to reach well below the neck of the receiving flask.
How is the Thistle Funnel normally mounted?
It is typically passed through a bung fitted to the flask, or held in position with a stand clamp as part of a larger apparatus set-up.
Related Products
Explore more from the Funnel range: Long stem Funnel, Dropping Funnel Pear Shape PTFE Stopcock, and the full Laboratory funnel category.
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Last updated: September 2026.