EISCO Separatory Funnel 2000mL Pear-Shaped Glass with Plastic Stopper

Description

Product Overview

The EISCO 2000mL pear‑shaped separatory funnel is engineered for precision and durability in demanding laboratory environments. Crafted from premium borosilicate glass, the funnel provides exceptional chemical resistance, allowing it to withstand aggressive reagents, strong acids, and bases without compromising clarity or structural integrity. The transparent material offers unparalleled visibility, enabling users to monitor phase boundaries and liquid levels with confidence during separations.

Designed with a classic pear shape, the funnel promotes smooth flow and reduces turbulence, which is essential for achieving clean separations between immiscible liquids. The 2000mL capacity meets the needs of both small‑scale analytical procedures and larger preparative tasks, making it a versatile tool for research, teaching, and industrial applications.

Equipped with a 29/32 plastic stopper, the funnel ensures a secure, leak‑free seal while providing chemical compatibility with a wide range of solvents. The stopper is interchangeable, allowing users to replace it easily if wear occurs or to adapt the funnel for different experimental setups. Complementing the stopper is a precision‑machined glass key stopcock, which offers fine control over the rate of liquid discharge. The stopcock’s design enables drop‑wise delivery, facilitating meticulous fraction collection and minimizing cross‑contamination.

Key specifications include dimensions of 6 × 6 × 16 inches and a weight of 2.1 lb, providing a balance between portability and stability on laboratory benches. The funnel’s robust construction tolerates temperature fluctuations, making it suitable for heating, cooling, and reflux operations when used with appropriate accessories.

Manufactured by EISCO, a reputable brand known for high‑quality laboratory glassware, this separatory funnel adheres to strict quality control standards. The product has earned a solid customer rating of 4.2 out of 5 stars based on 55 reviews, reflecting consistent performance and user satisfaction across diverse scientific disciplines.

Usage

The EISCO separatory funnel excels in a variety of laboratory scenarios. In organic synthesis, it enables efficient phase separations after extraction steps, allowing chemists to isolate desired compounds from aqueous waste streams. Its large 2000mL volume accommodates bulk reactions, reducing the need for multiple transfers and minimizing exposure to hazardous substances.

In academic settings, the funnel serves as an instructional tool for demonstrating liquid‑liquid extraction principles to students. The clear glass and precise stopcock facilitate visual learning, helping learners grasp concepts such as density differences, immiscibility, and the importance of controlled dispensing.

Beyond traditional chemistry labs, the funnel is valuable in environmental testing, where samples often require separation of organic contaminants from water matrices. Its chemical durability ensures reliable performance when handling environmentally relevant solvents like dichloromethane, chloroform, or hexane.

For hobbyist chemists and home‑based experimenters, the funnel provides a safe, professional‑grade option for small‑scale syntheses, natural product isolations, and educational projects. The interchangeable stopper and stopcock simplify maintenance, extending the product’s lifespan even with frequent use.

When integrated with auxiliary equipment such as magnetic stirrers, heating mantles, or vacuum adapters, the funnel’s design accommodates seamless workflow integration. Its ergonomic shape allows comfortable handling, reducing strain during prolonged operations.

Why Choose Us

Choosing the EISCO 2000mL separatory funnel means investing in a product that combines superior material quality with thoughtful engineering. Borosilicate glass is renowned for its low thermal expansion coefficient, which translates to resistance against cracking under rapid temperature changes—a critical attribute for labs that perform heating or cooling cycles.

Our commitment to quality is reflected in rigorous testing procedures that verify each funnel’s dimensional accuracy, leak integrity, and stopcock functionality before it reaches the customer. This ensures that every unit performs reliably, reducing downtime and the risk of experimental errors.

Customer support is a cornerstone of the EISCO experience. Our technical assistance team is available to answer product‑related inquiries, provide guidance on proper usage, and assist with troubleshooting. Should a stopper or stopcock require replacement, we offer prompt parts availability to keep your laboratory operations running smoothly.

Environmental responsibility is also a priority. The glass used in our funnels is recyclable, and the plastic stopper is manufactured from durable, low‑impact polymers that can be reused or responsibly disposed of at the end of its service life.

By selecting EISCO, you align with a brand that has a proven track record in the scientific community, as evidenced by its ranking among the top laboratory glassware manufacturers and positive customer feedback across multiple e‑commerce platforms.

Key Features

• High‑quality borosilicate glass provides excellent chemical resistance and clear visibility for precise monitoring.
• Large 2000mL capacity supports both analytical and preparative scale separations, reducing the need for multiple transfers.
• Interchangeable 29/32 plastic stopper ensures a secure, leak‑free seal and easy replacement when needed.
• Glass key stopcock offers fine, drop‑wise control of liquid flow, essential for accurate fraction collection.
• Comprehensive after‑sales support includes technical assistance, spare part availability, and guidance for optimal usage.

FAQ

What types of liquids can I separate with this funnel?

The funnel is suitable for separating immiscible liquid pairs such as organic solvents (e.g., dichloromethane, ether, hexane) from aqueous phases, as well as for handling acidic or basic solutions, provided the chemicals are compatible with borosilicate glass.

Can I use this funnel with a heating mantle?

Yes, the borosilicate glass construction tolerates moderate heating. When using a heating mantle, ensure the temperature does not exceed the glass’s recommended limit (typically around 300 °C) and avoid direct flame contact.

How do I replace the plastic stopper?

To replace the stopper, gently twist and pull the existing stopper out of the funnel’s neck. Align the new 29/32 plastic stopper with the opening and press it firmly until it seats securely. No additional tools are required.

Is the stopcock compatible with standard glass keys?

Yes, the stopcock is designed to work with standard glass keys commonly used in laboratory glassware. The key provides a secure grip for precise opening and closing of the valve.

What maintenance is recommended to prolong the funnel’s lifespan?

After each use, rinse the funnel thoroughly with appropriate solvents to remove residues. Inspect the stopper and stopcock for wear, and replace them if any damage is observed. Store the funnel in a dry, dust‑free environment to prevent scratches and corrosion.