Double jacketed four-necked round-bottom flask, capacity 100 to 5.000 ml

Engineered for precise temperature-regulated chemical synthesis, this double-jacketed four-neck round bottom flask features a fully enclosed thermal jacket for water or fluid bath circulation. Fabricated from thermal-shock-resistant 3.3 borosilicate glass, the four precision-ground neck joints allow simultaneous connection of auxiliary lab equipment—including reflux condensers, thermometer adapters, addition funnels, and overhead stirrers. Designed to handle liquid heating, cooling, and constant-temperature synthesis across 100ml to 5000ml working capacities, joint sizes can be fully customized upon request.

Key Features:

• Fully Enclosed Thermal Circulation Jacket: Integrated double-wall jacket accommodates circulating water or thermal fluids for precise heating, cooling, and constant-temperature reaction control.
• Versatile Four-Neck Configuration: Features four standard ground glass necks to simultaneously support condensers, temperature sensors, mechanical stirrers, and reagent dosing funnels.
• Customizable Ground Joint Sizes: Standard joint configurations are fully customizable (e.g., ST 24/40, 29/32, 14/20) to fit existing laboratory setup glass connections.
• Premium 3.3 Borosilicate Glass: Built from high-purity borosilicate glass delivering exceptional thermal stability, mechanical strength, and broad chemical resistance.
• Wide Volume Range (100ml to 5000ml): Available across a wide array of vessel capacities to accommodate both benchtop screening and small-batch pilot synthesis.
• Uniform Wall Thickness: Heavy-walled construction ensures safe pressure/vacuum resistance and uniform heat distribution across reaction mixtures.