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USA Lab Separatory Funnel with PTFE Valve - Various Options 1L / 2L / 5L
USA Lab$100.00 - $349.95.usalab-prod{--accent:#13a8b6;--ink:#0f1b2d;--muted:#64748b;--card:#f7f9fc;--ring:#e6ecf2;font-family:inherit} .usalab-prod *{box-sizing:border-box} .usalab-prod h2,.usalab-prod h3{margin:0 0 .5rem;color:var(--ink);line-height:1.2} ... -
2000mL Spherical Joint Round Bottom Receiving Flask - 1 neck 35/20
USA LabRBF2LS35$55.00Our 2L S35/20 1 Neck Spherical Joint Round Bottom 2000ml flask is constructed with 3.3 Borosilicate Glass and a 35/20 neck for a durable, common-size receiving flask to use. We ship all glassware products with additional...
Separatory Funnels From USA Lab
Precision Tools for Liquid-Liquid Extraction and Separation
Separatory funnels are essential for clean, controlled liquid-liquid extractions. USA Lab offers high-quality borosilicate glass separatory funnels equipped with PTFE stopcocks and stoppers for precise flow control and chemical resistance. Whether you're separating organic and aqueous layers or purifying compounds, these funnels deliver clarity, durability, and dependable performance.
Made for Clean, Controlled Separations
Borosilicate 3.3 Glass
Resists chemical corrosion and thermal shock for long-term use, giving you a funnel that holds up during repeated mixing, washing, and solvent extractions.
PTFE Stopcock Valve
Provides smooth, leak-free flow control without sticking or swelling to drain layers at a steady pace and avoids sudden surges that disturb your separation.
Ground-Glass Top and Stopper
Ensures a tight seal to prevent vapor or solvent loss so you can shake and vent mixtures while keeping everything contained during extractions.
Graduated Markings
Clear volume indicators make it easy to measure and monitor phase separation for recording exact amounts during prep work or analytical methods.
Compare Separatory Funnel Options
| Model | Capacity | Valve Type | Features |
|---|---|---|---|
| USA Lab Separatory Funnel with PTFE Valve | 1L, 2L, 5L (glass only) 2L, 5L (kit) |
PTFE stopcock | Graduated body, easy-to-clean design, chemical resistant |
| 1-Neck Spherical-Joint Round-Bottom Flask | 2L | Spherical 35/20 joint | Useful companion flask for collecting separated fractions |
Simple, Reliable Operation
- Easy to fill and drain — Large top opening and precise PTFE valve make transfers simple.
- Smooth inner surface — Minimizes residue and simplifies cleaning between runs.
- Stable base — Designed for use with standard ring stands and clamps.
- Reusable design — Built to withstand repeated solvent exposure and cleaning cycles.
Choosing the Right Size
- Working with small-batch extractions? → The 1L model is perfect for standard separations.
- Processing larger volumes or multiple samples? → Choose 2L or 5L sizes for higher throughput.
- Need a collection vessel? → The 2L spherical joint flask pairs seamlessly as a receiver.
Why Choose USA Lab Separatory Funnels
- PTFE components ensure smooth, chemical-resistant operation.
- Available in multiple sizes for both research and production environments.
- Supported by fast U.S. shipping and responsive customer service.
Equipment That Works With Your Separatory Funnel
Pair your separatory funnel with:
- Stands and clamps to secure your funnel during mixing or separation
- Erlenmeyer or round-bottom flasks to collect and store separated fractions
- Funnels and glass adapters to simplify sample transfers and connections
- Vacuum pumps to assist with solvent recovery when paired with condensers or traps
