The Flask Glass Round Bottom 2 Ground Neck is a high-quality laboratory glassware item developed for chemical reactions, reflux systems, and distillation setups that require dual connections. It is manufactured from heat-resistant, durable borosilicate glass in full compliance with DIN/ISO standards, ensuring excellent thermal stability, chemical resistance, and long service life.

The flask features two perfectly ground NS necks with smooth interior surfaces, providing excellent leak-proof closure and reliable compatibility with standard laboratory joints. This configuration allows simultaneous use of accessories such as condensers, thermometers, dropping funnels, or gas inlets, offering flexibility in experimental design.

Its thick wall construction, heavy base, and reinforced rim significantly reduce the risk of breakage during washing, handling, and transportation. White enamel inscriptions enhance visibility and identification under laboratory conditions.

This two-neck round bottom flask is widely used in chemistry, pharmaceutical, research, and educational laboratories, where precision, safety, and adaptability are essential.

Areas of Use

• Chemical synthesis reactions

• Reflux and distillation setups

• Multi-component laboratory assemblies

• Research and analytical laboratories

• Educational and teaching laboratories

Key Advantages

• Manufactured from borosilicate glass for superior heat and chemical resistance

• Two ground NS necks for versatile experimental configurations

• Smooth interior joints ensure leak-proof connections

• Thick walls and heavy base enhance mechanical strength

• Reinforced rim minimizes breakage risk

• White enamel inscriptions for clear identification

Technical Specifications

• Product Type: Round Bottom Flask

• Neck Configuration: 2 Ground Necks

• Material: Borosilicate Glass

• Joint Type: NS (standard ground joints)

• Standard Compliance: DIN/ISO

• Markings: White enamel, printed

Safety Warnings

• Support the flask securely during use

• Avoid sudden temperature changes

• Inspect ground joints for cleanliness before assembly

• Always use appropriate laboratory personal protective equipment

Storage Conditions

• Store in a clean, dry, and secure environment

• Protect from mechanical shock and impact

• Store separately to prevent stress on ground joints

Usage Notes

• Ensure proper joint alignment before operation

• Suitable for heating with appropriate laboratory heating equipment

• Clean thoroughly after each use to maintain joint integrity

The Flask Glass Round Bottom 2 Ground Neck offers durability, precision, and functional flexibility, making it an essential component for reliable laboratory setups in professional and educational environments.