The Flask Glass Round Bottom Ground Neck is a standard laboratory glassware item designed for chemical reactions, heating, reflux, and distillation applications. Manufactured from heat-resistant, durable borosilicate glass in accordance with DIN/ISO standards, it provides excellent thermal stability, chemical resistance, and long-term reliability for daily laboratory use.

The flask is equipped with a perfectly ground NS neck featuring a smooth interior, ensuring excellent leak-proof closure and secure compatibility with standard laboratory joints such as condensers, adapters, and stoppers. Its round bottom design promotes uniform heat distribution, making it ideal for controlled heating processes.

A thick wall structure, combined with a heavy base and reinforced rim, significantly reduces the risk of breakage during washing, handling, and transportation. Clearly visible volume graduations and inscriptions, printed with white enamel, allow accurate volume estimation and easy identification under laboratory conditions.

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

Areas of Use

• Chemical synthesis and reactions

• Heating and reflux systems

• Distillation setups

• Research and analytical laboratories

• Educational and teaching laboratories

Key Advantages

• Manufactured from borosilicate glass for superior heat and chemical resistance

• Single ground NS neck for secure, leak-proof connections

• Round bottom design for even heat distribution

• Thick walls, heavy base, and reinforced rim for enhanced durability

• White enamel graduations and markings for clear visibility

• Fully compliant with DIN/ISO standards

Technical Specifications

• Product Type: Round Bottom Flask

• Neck Configuration: Single ground neck

• Material: Borosilicate Glass

• Joint Type: NS (standard ground joint)

• Graduations: White enamel, printed

• Standard Compliance: DIN/ISO

Safety Warnings

• Support the flask properly during use

• Avoid sudden temperature changes

• Inspect ground joint 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 the ground joint

Usage Notes

• Ensure correct joint size selection before use

• Suitable for heating with appropriate laboratory equipment

• Clean thoroughly after each use to maintain joint integrity

The Flask Glass Round Bottom Ground Neck delivers precision, durability, and reliable sealing, making it an essential component for standard laboratory operations in professional and educational environments.