Five-Neck Flat-Bottom Flask, 150 to 5000 ml, Borosilicate Glass 3.3

This five-neck flat-bottom flask is engineered for advanced laboratory operations that require multiple simultaneous connections, such as multi-component reactions, distillations, or continuous reflux setups. Its flat base ensures stability when used with heating mantles or hotplates, eliminating the need for additional support rings.

Constructed from high-quality Borosilicate glass 3.3, the flask provides excellent thermal resistance and chemical durability. Each of the five necks is equipped with standard taper joints, allowing connection to condensers, thermometers, dropping funnels, mechanical stirrers, or gas inlets offering unmatched experimental flexibility.

This design is widely used in organic synthesis, pilot-scale chemistry, and parallel reactions requiring complex apparatus configurations.

Key Features:

• Capacity range: 150 ml to 5000 ml
• Five-neck configuration for multifunctional laboratory setups
• Flat-bottom design for use on heating surfaces
• Standard taper joints compatible with common labware
• High resistance to thermal shock and corrosion
• Material: Borosilicate glass 3.3
• Suitable for reflux, distillation, and complex synthetic applications