Description
Product Overview
The 25ml Schlenk reaction flask is a pear-shaped laboratory vessel designed for air-sensitive chemical reactions. Made from high-quality borosilicate glass, it features a heavy-wall construction for durability and high transparency for precise observation. The glass stopcock allows connection to vacuum or inert gas sources, while the 14/20 joint enables attachment of reflux condensers or addition funnels. This flask is ideal for advanced lab setups requiring controlled environments.
Usage
This flask is commonly used in organic chemistry labs for reactions requiring exclusion of air or moisture. It’s suitable for researchers, chemists, and educational institutions conducting air-sensitive synthesis. The 14/20 joint allows compatibility with standard lab equipment, making it versatile for various setups. Ideal for both benchtop and advanced reaction systems.

Why Choose Us
Our Schlenk flasks are manufactured using premium borosilicate glass for superior thermal resistance and chemical inertness. Each unit is rigorously tested for durability and precision. The glass stopcock ensures airtight sealing, while the 14/20 joint offers universal compatibility. We provide reliable customer support and fast shipping for uninterrupted lab operations.
Key Features
- High-quality borosilicate glass for durability, thermal resistance, and optical clarity
- Heavy-wall design ensures strength and resistance to thermal shock
- 14/20 joint allows seamless connection to reflux condensers and addition funnels
- Glass stopcock enables vacuum or inert gas control for air-sensitive reactions
- Reusable and easy to clean, ideal for long-term lab use with minimal maintenance
FAQ
What is a Schlenk flask used for?
A Schlenk flask is used in air-sensitive chemistry to conduct reactions under inert atmospheres or vacuum. It’s essential for handling reactive compounds that degrade in the presence of air or moisture.
What materials is this flask made of?
This flask is made of borosilicate glass, known for its high thermal resistance, chemical inertness, and durability. It’s designed to withstand harsh lab conditions without cracking or deforming.
Can I use this flask with a magnetic stirrer?
Yes, this flask is compatible with magnetic stirrers and can be used with addition funnels, reflux condensers, and other standard lab equipment. The 14/20 joint ensures secure connections for various setups.
Is this flask reusable?
Yes, this flask is designed for repeated use. It’s easy to clean and maintain, making it cost-effective for long-term lab use. Proper handling ensures its longevity.
What is the size of the glass stopcock?
The glass stopcock is designed to connect to vacuum or inert gas sources. It’s compatible with standard lab equipment and ensures airtight sealing for precise control during reactions.





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