Dropping Funnel Pear Shape PTFE Stopcock
Product Code : EL-F-10109
Quick answer: This dropping funnel has a pear-shaped body, a PTFE stopcock and a drip stem, available with the stem seated inside the ground cone for a compact fit on the receiving flask. It is supplied in four capacities from 50ml to 500ml with a 2.5mm or 4mm bore, and is used to add a liquid reagent into a reaction vessel in a slow, controlled stream.
| Specification | Detail |
|---|---|
| Product | Dropping Funnel Pear Shape PTFE Stopcock |
| Capacities offered | 50ml, 100ml, 250ml, 500ml |
| Stopcock type | PTFE |
| Bore options | 2.5mm, 4mm |
| Stem | Drip stem, available with stem inside cone |
Pear Shape vs. Cylindrical for Dropwise Addition
A pear-shaped dropping funnel holds most of its liquid lower in a wider body that tapers toward the stopcock, which keeps the remaining liquid level more visible as the addition proceeds compared with a straight-sided cylindrical funnel. The drip stem is shaped to deliver the reagent as a controlled stream of drops rather than a dribble down the flask wall, and having the stem seated inside the ground cone keeps the assembly compact where bench or fume-hood clearance above the reaction flask is limited.
Frequently Asked Questions
What bore sizes are available?
This dropping funnel is offered with a 2.5mm or 4mm bore. A smaller bore gives finer control over slow, dropwise addition.
What capacities are offered?
It is supplied in 50ml, 100ml, 250ml and 500ml capacities.
What does "stem inside cone" mean?
It means the drip stem is seated inside the ground glass cone that fits the receiving flask, keeping the overall assembly compact rather than having the stem project below the cone.
Related Products
Explore more from the Funnel range: Dropping Funnel Cylindrical, PTFE Stopcock, Dropping Funnel Cylindrical, Solid Glass Stopcock, and the full Laboratory funnel category.
Request a Quote
Contact Us for a quotation, or visit the Tenders page for bulk and institutional procurement.
Last updated: September 2026.
.jpg)
.jpg)