Description
Product Overview
The FSLAB 1000 ml borosilicate glass separatory funnel is engineered for demanding laboratory applications where precision, durability, and chemical resistance are paramount. Constructed from high‑grade borosilicate glass, the funnel resists thermal shock and corrosion from a wide range of solvents, acids, and bases. Its heavy‑wall design adds structural strength, reducing the risk of breakage during routine handling or when subjected to temperature fluctuations. The integrated PTFE stopcock provides a smooth, leak‑free flow control, while the 24/40 joint configuration ensures compatibility with standard laboratory glassware such as condensers, drying tubes, and receiving flasks. The funnel measures 17.09 × 7.91 × 6.06 inches and weighs 3.33 lb, making it easy to maneuver on a bench without sacrificing stability.
Usage
This separatory funnel excels in a variety of laboratory settings, from academic research labs to industrial quality‑control environments. It is particularly well‑suited for liquid‑liquid extraction, phase‑separation titration, and small‑scale distillation processes. The clear glass body allows technicians to monitor the interface between immiscible liquids, facilitating accurate collection of the desired phase. The funnel’s robust construction makes it a reliable choice for food‑testing laboratories where repeated exposure to acidic or basic solutions is common. Additionally, the PTFE stopcock’s chemical inertness ensures that no contamination occurs during prolonged use, preserving sample integrity across multiple experiments.
Why Choose Us
Choosing the FSLAB separatory funnel means investing in a product that combines premium materials with meticulous craftsmanship. Each funnel undergoes rigorous quality‑control testing, including pressure resistance and leak detection, to guarantee consistent performance. The heavy‑wall borosilicate glass not only extends the product’s lifespan but also provides a clear visual cue for phase boundaries, reducing operator error. Our PTFE stopcock is precision‑machined to deliver a tight seal and smooth operation, even after thousands of cycles. Moreover, FSLAB offers responsive customer support and a straightforward return policy, ensuring that any concerns are addressed promptly and professionally.
Key Features
- Heavy‑wall borosilicate glass resists thermal shock and chemical corrosion for long‑term durability.
- PTFE stopcock delivers precise, leak‑free flow control across a wide temperature range.
- 24/40 joint compatibility ensures seamless integration with standard laboratory glassware.
- Clear glass body provides excellent visibility of liquid interfaces, enhancing accuracy in separations.
- Dedicated FSLAB customer support and hassle‑free return policy for peace of mind.
FAQ
Can this funnel be used with corrosive acids?
Yes. The borosilicate glass is specifically formulated to withstand strong acids and bases, making it safe for most corrosive chemicals used in laboratory work.
Is the PTFE stopcock compatible with standard laboratory clamps?
The stopcock is designed to fit common laboratory clamps and stands, allowing secure positioning during extraction or distillation procedures.
How do I clean the funnel after use?
Rinse the funnel with distilled water followed by a suitable solvent for the chemicals previously handled. The PTFE stopcock can be cleaned with mild detergent and rinsed thoroughly to maintain its smooth operation.
What is the maximum temperature the funnel can tolerate?
The borosilicate glass can safely endure temperatures up to 350 °C, while the PTFE stopcock remains functional up to about 260 °C.
Do you provide replacement parts for the stopcock?
Yes, FSLAB offers replacement PTFE stopcocks and joint adapters to extend the life of your funnel and keep it performing at peak efficiency.




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