125ml,24/40,Lab Pyriform Separatory Funnel,PTFE Stopcock,Ground Joints

Description

Product Overview

The Deschem 125ml Lab Pyriform Separatory Funnel is engineered for high‑performance liquid‑liquid extraction in research and industrial laboratories. Constructed from G3.3 grade borosilicate glass, the funnel offers exceptional thermal resistance with an annealing point of 560 °C, a softening point of 820 °C, and a linear coefficient of expansion of 32×10⁻⁷ / °C, ensuring dimensional stability during temperature fluctuations. The 125 ml capacity provides ample volume for medium‑scale separations while maintaining a compact footprint (12.4 × 3.66 × 3.63 inches, 10.58 oz). A precision PTFE stopcock delivers leak‑free flow control, and the ground‑joint connections guarantee a secure, airtight seal with compatible glassware. The funnel’s pyriform shape promotes efficient phase separation by directing the denser phase toward the stopcock while the lighter phase remains on top, reducing cross‑contamination and improving yield. Designed for durability, the glass resists chemical attack from acids, bases, and organic solvents, making it suitable for a wide range of applications, from organic synthesis to environmental sample preparation.

Usage

This separatory funnel excels in scenarios where precise phase separation is critical. It is ideal for organic chemists performing extractions, pharmaceutical researchers isolating active compounds, and environmental analysts separating contaminants from aqueous matrices. The PTFE stopcock allows fine‑tuned dispensing of the lower phase, while the ground‑joint design enables seamless integration with standard laboratory stands, clamps, and receiving flasks. Users can safely conduct extractions involving volatile solvents, as the robust glass construction minimizes the risk of breakage under vacuum or pressure. The funnel also performs well in educational settings, providing students with a reliable tool to demonstrate fundamental separation techniques. Its clear glass body facilitates visual monitoring of phase boundaries, and the ergonomic stopcock handle reduces hand fatigue during repetitive operations.

Why Choose Us

Choosing the Deschem Pyriform Separatory Funnel means investing in a product backed by rigorous quality assurance and a reputation for scientific reliability. Deschem sources premium borosilicate glass and subjects each funnel to a multi‑stage annealing process that eliminates internal stresses, guaranteeing long‑term durability. The PTFE stopcock is precision‑machined to meet exacting tolerances, delivering consistent flow rates and preventing leaks that could compromise experimental results. Our manufacturing facilities adhere to ISO‑9001 standards, and each unit undergoes a final visual and functional inspection before shipment. In addition, Deschem provides responsive technical support and a clear return policy, ensuring that customers receive prompt assistance for any concerns. By selecting this funnel, laboratories benefit from reduced downtime, lower risk of glass breakage, and enhanced reproducibility across experiments.

Key Features

• High‑quality G3.3 borosilicate glass resists chemicals and thermal shock for lasting performance
• Precision PTFE stopcock offers smooth, leak‑free control of liquid flow
• Ground‑joint design ensures a tight, airtight seal with compatible labware
• Pyriform shape enhances phase separation efficiency, reducing cross‑contamination
• Responsive customer support and easy replacement policy for peace of mind

FAQ

What types of solvents can I use with this funnel?

The borosilicate glass construction is compatible with most organic solvents, acids, bases, and aqueous solutions. It is recommended to avoid highly concentrated hydrofluoric acid, which can etch glass.

How do I clean and maintain the PTFE stopcock?

After each use, flush the stopcock with a suitable solvent (e.g., ethanol) and wipe the exterior with a lint‑free cloth. For stubborn residues, soak the stopcock in a mild detergent solution, rinse thoroughly, and dry before reassembly.

Can this funnel be used under vacuum or pressure?

Yes, the funnel’s robust glass and secure ground‑joint connections allow safe operation under moderate vacuum or slight positive pressure. Always inspect the glass for cracks before use and follow laboratory safety protocols.

Is the funnel compatible with standard laboratory stands?

Absolutely. The funnel’s standard ground‑joint size fits common clamps and stands, enabling stable positioning during extractions and other procedures.

What is the warranty period for this product?

Deschem offers a one‑year limited warranty covering manufacturing defects. Should any issue arise within this period, contact our support team for a replacement or repair.