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Glass Separatory Funnel
Original price was: ₹230.00.₹105.00Current price is: ₹105.00.
Quick answer: A glass separatory funnel, also called a separating funnel, is used to separate two immiscible liquids of different densities, most commonly during liquid-liquid extraction in organic and analytical chemistry.
When two liquids that do not mix, such as an aqueous solution and an organic solvent, are shaken together in the funnel and then left to stand, they settle into two distinct layers according to density. The stopcock at the base of the pear-shaped body allows the lower, denser layer to be drained off carefully while the upper layer is retained in the funnel, giving a clean separation of the two phases.
Separatory funnels are a standard tool wherever a compound needs to be extracted from one liquid phase into another, such as purifying a reaction product, washing an organic layer, or removing an unwanted impurity into an aqueous wash.
Technical Specifications
| Parameter | Detail |
|---|---|
| Body material | Glass |
| Design | Pear-shaped body with lower stopcock and stopper |
| Typical use | Liquid-liquid extraction and phase separation |
| Capacity | Supplied in a range of standard laboratory capacities — confirm the exact volume required at enquiry |
Applications
- Liquid-liquid extraction of organic compounds from aqueous solutions
- Washing an organic layer with an aqueous solution during synthesis work-up
- Separation of immiscible reaction by-products
- General purification steps in teaching and research organic chemistry
Care & Handling
- Check the stopcock and stopper for a secure, leak-free fit before adding liquids
- Vent pressure periodically during shaking by inverting the funnel and opening the stopcock briefly, away from people
- Support the funnel securely in a proper ring stand and clamp during use
- Rinse and dry the stopcock thoroughly after use to prevent it sticking
- Check chemical compatibility of the funnel and any grease used on the stopcock with your specific solvents
Why Choose LabEquip
LabEquip supplies extraction and separation glassware alongside our wider lab glassware range and chemistry lab equipment to schools, colleges and research laboratories across India. For bulk or institutional requirements, contact us and our team will help confirm the right funnel capacity for your work.
Frequently Asked Questions
What is a separatory funnel used for?
A separatory funnel, also called a separating funnel, is used to separate two immiscible liquids of different densities, most commonly in liquid-liquid extraction procedures.
How does a separatory funnel work?
The liquids settle into distinct layers inside the pear-shaped body, and the lower stopcock is opened carefully to drain off the denser bottom layer while the upper layer is retained.
Can a separatory funnel be used for organic solvent extraction?
Yes, separatory funnels are widely used in organic chemistry to extract a compound from an aqueous layer into an organic solvent layer, or vice versa.
How should the funnel be vented during use?
Pressure that builds up from volatile solvents or mixing should be released periodically by inverting the stoppered funnel and opening the stopcock briefly, pointing the outlet away from people, before shaking further.
What capacity does this separatory funnel come in?
Separatory funnels are supplied in a range of standard laboratory capacities. Confirm the exact volume you need when placing your enquiry.
Does LabEquip supply separatory funnels for bulk or institutional orders?
Yes. LabEquip supplies glass separatory funnels to schools, colleges and laboratories across India, including bulk and institutional orders. Contact us for a quotation.
Last Updated: September 2026
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