Glass Flask

Glass Flask

The Glass Flask range comprises precision-engineered laboratory flasks manufactured from high-quality borosilicate glass 3.3, designed to perform reliably across a wide spectrum of laboratory applications. These flasks are essential vessels for chemical reactions, heating, reflux, distillation, mixing, and temporary storage under controlled laboratory conditions.

The product portfolio includes Round Bottom Flasks, Flat Bottom Flasks, Erlenmeyer (Conical) Flasks, Volumetric Flasks, and Multi-Neck Flasks, all compatible with standard ground-glass joints to ensure modular integration with condensers, adapters, thermometers, and other lab assemblies.

Manufactured in compliance with DIN ISO 3585, ASTM E438, and equivalent international standards, these flasks offer consistent wall thickness, excellent thermal shock resistance, and chemical durability. Custom configurations are available to meet specialized research or pilot-scale requirements.

Material & Construction

• Material: Borosilicate Glass 3.3
• Properties: High chemical resistance, low thermal expansion, excellent transparency
• Wall Thickness: Optimized for laboratory heating and cooling cycles
• Surface Finish: Smooth, uniform glass surface for easy cleaning

Technical Specifications

• Volume Range: 50 mL to ~20 Litres (depending on flask type)
• Neck Configurations: Single-neck, double-neck, triple-neck & multi-neck
• Joint Types: Standard taper joints (24/29, 29/32, 34/35, etc.)
• Joint Finish: Precision-ground joints for leak-tight and gas-tight sealing
• Operating Temperature Range: Approx. –50 °C to +200 °C (typical for borosilicate glass)

Available Customizations

• Additional or angled sidearms
• Extra necks or special neck orientations
• Thicker wall construction for enhanced durability
• Custom volumes, dimensions, or joint sizes
• Integration ports for probes, sensors, or gas lines

Typical Applications

• Chemical reactions involving heating, reflux, or distillation
• Solvent boiling, condensation, and recovery processes
• Mixing and blending of reagents in R&D laboratories
• Storage of solutions under ambient or inert atmospheres
• Assembly of gas generation or liquid dispensing systems using adapters

Because of their versatility, glass flasks form the backbone of laboratory glassware, widely used in academic institutions, pharmaceutical labs, chemical industries, analytical labs, and pilot-scale setups.

Key Advantages

• Excellent thermal and chemical resistance
• Modular compatibility with standard lab glassware
• High dimensional accuracy and repeatability
• Long service life under laboratory conditions
• Suitable for both routine and advanced laboratory work

Frequently Asked Questions (FAQ)

Q1. Are these flasks suitable for direct heating?
Yes, borosilicate glass flasks are suitable for controlled heating using heating mantles, oil baths, or hot plates.

Q2. Can multi-neck flasks be customized?
Absolutely. Neck number, joint size, and orientation can be customized based on application needs.

Q3. Are the joints interchangeable with other lab glassware?
Yes, standard ground-glass joints ensure compatibility with condensers, adapters, and accessories.

Q4. Can these flasks be used for vacuum applications?
For light to moderate vacuum, yes. For higher vacuum, thicker-wall or reinforced designs are recommended.