Flask, Round/Flat Bottom, Single Neck

The GISCOM  Round/Flat Bottom Flask with Single Neck is a precision-engineered laboratory vessel designed for heating, mixing, distillation, and general chemical processing. Its single-neck design ensures secure attachment of stoppers, condensers, and other lab accessories, making it ideal for controlled reactions. Manufactured from high-quality Borosilicate Glass 3.3, the flask offers excellent thermal stability and chemical resistance, ensuring reliable performance in both routine and advanced laboratory applications.

Key Features

• Made from premium Borosilicate Glass 3.3 for superior durability and heat resistance.
• Round/flat bottom design ensures uniform heat distribution during heating operations.
• Single neck allows easy connection to standard joint systems and laboratory equipment.
• High-clarity glass provides excellent visibility of reactions and contents.
• Resistant to strong acids, alkalis, solvents, and thermal shock.
• Smooth, stress-free glass construction for enhanced safety and long service life.
• Suitable for heating in water baths, oil baths, or with heating mantles (round bottom).
• Leak-proof joint ensures secure, airtight assembly during experiments.

Material Specifications

• Material: Borosilicate Glass 3.3
• Key Properties: High thermal shock resistance (ΔT ~ 120°C), Excellent chemical resistance to most laboratory reagents, low coefficient of thermal expansion (~3.3 × 10⁻⁶ /°C), high mechanical strength and durability
• Standards Compliance: Conforms to ISO, DIN, and ASTM standards for laboratory glassware. Manufactured in accordance with international quality and safety norms

Technical Specifications

• Available Capacities: As per the standard size table
• Design Options: Round Bottom, Flat Bottom, Single Standard Neck with Standard Joint (custom joint sizes available)
• Dimensions: Diameter, height, and joint size vary as per individual capacity. Precision-blown for dimensional accuracy
• Tolerance: Manufactured with tight tolerances for consistent performance
• Calibration Details: Not a calibrated volumetric vessel (general purpose flask)
• Accessories (Optional): Glass stoppers, Joint clips, Custom labeling

Handling & Precautions

• Avoid direct flame contact unless using an appropriate round-bottom heating support.
• Ensure uniform heating to prevent thermal stress.
• Do not subject the flask to sudden temperature changes.
• Suitable for autoclaving up to recommended temperature limits.
• Use appropriate cleaning agents; avoid abrasive scrubbers to maintain clarity.
• Inspect joints regularly for chips or cracks before use.
• Store in padded racks or protective holders to avoid mechanical impact.

Applications

• Ideal for chemical reactions, heating, boiling, and solvent distillation.
• Widely used in organic synthesis, sample preparation, and reflux setups.
• Perfect for use in pharmaceuticals, biotechnology labs, chemical industries, academic research, and QC/QA environments.
• Supports daily laboratory workflows such as solution preparation, compound evaporation, and controlled heating processes.
• Preferred for rotary evaporators (round bottom type) and analytical research setups.