The Flask Glass Flat Bottom Ground Neck is a robust and versatile laboratory glassware item designed for heating, mixing, storage, and reaction applications where stable bench placement is required. 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 a perfectly ground NS neck with a smooth interior, providing excellent leak-proof closure and secure compatibility with standard laboratory accessories such as stoppers, adapters, and condensers. Its flat bottom design allows the flask to stand upright independently, eliminating the need for additional support during routine laboratory operations.

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, enable easy volume estimation and clear identification under laboratory conditions.

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

Areas of Use

• Chemical reactions and solution preparation

• Heating and mixing applications

• Sample storage and handling

• Research and analytical laboratories

• Educational and teaching laboratories

Key Advantages

• Manufactured from borosilicate glass for superior heat and chemical resistance

• Flat bottom design for stable, free-standing use

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

• Thick walls, heavy base, and reinforced rim enhance durability

• White enamel graduations and markings for clear visibility

• Fully compliant with DIN/ISO standards

Technical Specifications

• Product Type: Flat 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

• Avoid sudden temperature changes

• Do not heat the flask when empty

• 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 upright on stable surfaces

Usage Notes

• Ensure correct joint size selection before use

• Suitable for heating with appropriate laboratory heating equipment

• Clean thoroughly after each use to maintain joint integrity

The Flask Glass Flat Bottom Ground Neck combines stability, durability, and precise sealing, making it a dependable solution for everyday laboratory operations in professional and educational environments.