Quick answer: A Plastic Separatory Funnel is a pear-shaped vessel with a stopcock, used to separate two immiscible liquid layers by liquid-liquid extraction in chemistry laboratories, offering a shatterproof alternative to glass. Separatory Funnel, Plastic is priced at approximately ₹356 (indicative market benchmark, incl. GST, August 2026).
The Plastic Separatory Funnel is used whenever two immiscible liquids need to be separated — commonly an organic solvent layer and an aqueous layer — a core technique in liquid-liquid extraction. After the two layers settle by density inside the funnel, the stopcock at the base is opened carefully to drain off the lower layer while retaining the upper layer, isolating each for further use or analysis. Made from polypropylene rather than glass, this version offers shatterproof durability for regular classroom and lab handling, while remaining transparent enough to clearly see the layer boundary during separation — an important practical requirement for this technique to work correctly.
Technical Specifications
| Parameter | Detail |
|---|---|
| Product Type | Plastic (polypropylene) separatory funnel |
| Typical Use | Liquid-liquid extraction, separating immiscible liquid layers |
| Key Feature | Transparent body to observe layer separation; stopcock for controlled draining |
| Advantage Over Glass | Shatterproof, safer for regular classroom handling |
| Typical Use Setting | School, college and research chemistry laboratories |
| Price | Approx. ₹356 (indicative market benchmark, incl. GST, August 2026) |
| Exact dimensions/technical detail | Not independently verified for this listing — confirm with STEMAids before specifying in a tender |
Applications
- Liquid-liquid extraction to separate organic and aqueous layers
- Purification steps following an organic synthesis reaction
- Teaching extraction technique as part of standard organic chemistry practicals
- General-purpose separation of immiscible liquids in chemistry coursework
Care & Maintenance
- Check the stopcock seal periodically for leaks and clean any residue that could cause sticking
- Rinse thoroughly with an appropriate solvent after use to prevent cross-contamination
- Store with the stopcock in the open position to avoid the seal sticking over time
Why Choose STEMAids
STEMAids supplies a wide range of Chemistry Lab Equipments including Conductivity Tester for related laboratory and classroom needs. Eduscope Smart Learning Solutions Private Limited is a Udyam-registered micro manufacturing enterprise (UDYAM-DL-06-0069460) and ISO 9001:2015 certified, supplying schools, colleges and vocational institutes across India and for export.
Frequently Asked Questions
What is a separatory funnel used for?
It is used to separate two immiscible liquid layers — typically an organic solvent and an aqueous layer — by letting them settle by density and then draining the lower layer through the stopcock.
Why choose plastic over a traditional glass separatory funnel?
Plastic (polypropylene) construction is shatterproof, offering safer, more durable handling for regular classroom use compared with glass, while still being transparent enough to observe the layer separation.
Is this funnel chemically resistant to organic solvents?
General chemical resistance is expected from polypropylene construction, but compatibility with specific solvents has not been independently verified for this listing — confirm with STEMAids for demanding applications.
Does STEMAids supply this in bulk for institutional labs?
Yes — STEMAids supplies laboratory consumables including separatory funnels for institutional and bulk orders; contact STEMAids to confirm current quantities and pricing.
Are exact funnel capacity and dimensions available for tender specification?
Exact capacity and dimensions have not been independently verified for this listing. Institutions preparing tender documents should confirm precise specifications directly with STEMAids before finalising procurement paperwork.
Is STEMAids a registered manufacturer of this product?
Yes. Eduscope Smart Learning Solutions Private Limited is a Udyam-registered micro manufacturing enterprise (UDYAM-DL-06-0069460) and is ISO 9001:2015 certified. See the About page for full registration and certification details — manufacturer-stated, verify before citing in procurement documents.
Last updated: 29 August 2026.
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