The Separating Funnel Squibb PTFE Stopcock is a high-performance laboratory glassware item developed for liquid–liquid extraction and phase separation processes requiring precision, chemical resistance, and ease of use. It is manufactured from heat-resistant, durable borosilicate glass in accordance with DIN/ISO standards, ensuring excellent thermal stability and long service life.

This Squibb-type separating funnel features perfectly ground NS necks with smooth interior surfaces, providing secure compatibility with standard laboratory joints. Volume graduations and inscriptions printed with white enamel allow accurate monitoring of liquid volumes during extraction procedures.

Its thick wall construction and reinforced rim minimize the risk of breakage during washing, handling, and transportation. The funnel is supplied with a P.E. stopper and an interchangeable PTFE stopcock, which offers superior chemical resistance and does not require greasing, ensuring smooth operation, clean handling, and reduced maintenance.

Thanks to its reliable design and grease-free stopcock system, this separating funnel is widely preferred in chemistry, pharmaceutical, research, and educational laboratories where reproducibility and solvent compatibility are critical.

Areas of Use

• Liquid–liquid extraction procedures

• Phase separation applications

• Chemical and pharmaceutical laboratories

• Research and analytical laboratories

• Educational laboratory experiments

Key Advantages

• Manufactured from borosilicate glass for high chemical and thermal resistance

• Squibb-type design for efficient phase separation

• PTFE stopcock with excellent chemical resistance

• Grease-free operation and low maintenance

• Ground NS necks for secure and standardized connections

• White enamel graduations for clear volume reading

• Thick walls and reinforced rim enhance durability

Technical Specifications

• Product Type: Separating Funnel (Squibb Type)

• Material: Borosilicate Glass

• Stopcock: PTFE, interchangeable, grease-free

• Neck Type: Ground NS joint

• Graduations: White enamel, printed

• Accessories Included: P.E. stopper

Safety Warnings

• Ensure the PTFE stopcock is properly seated before use

• Support the funnel securely during operation

• Handle with care to avoid breakage

• Always use appropriate laboratory personal protective equipment

Storage Conditions

• Store in a clean, dry, and secure environment

• Protect from mechanical shock and impact

• Store upright to prevent stress on the stopcock

Usage Notes

• PTFE stopcock does not require lubrication

• Clean thoroughly after each use to prevent cross-contamination

• Ensure solvent compatibility with PTFE and glass materials

The Separating Funnel Squibb PTFE Stopcock combines precision, durability, and grease-free operation, making it a dependable solution for efficient and reproducible liquid separation in professional and educational laboratory environments.