The Flask Round Bottom, 2 Angular manufactured by Edulabs is a multi-neck reaction vessel designed for organic chemistry, chemical research, and analytical synthesis procedures. In complex chemical reactions, operators frequently need to introduce reagents, monitor internal temperatures, or purge reaction systems with inert gases while simultaneously maintaining liquid reflux. The two-neck angular configuration meets these requirements by providing two distinct access ports into a single reaction vessel.

The flask features a primary vertical center socket joint and a secondary side socket joint set at an angle. The vertical center neck typically supports a main reflux condenser or distillation head, while the angled side socket permits easy insertion of dropping funnels, thermometers, gas inlet tubes, or sampling probes without interfering with the primary condenser assembly. The spherical round-bottom geometry ensures uniform thermal distribution across the liquid mass, preventing localized hot spots and reducing thermal stress during continuous boiling.

Fabricated from 33 expansion borosilicate glass, this two-neck flask meets USP Type I and ASTM E438, Type I, Class A material standards. It offers low thermal expansion, granting high thermal shock resistance under rapid temperature fluctuations. Furthermore, its chemical neutrality guarantees non-reactivity when exposed to concentrated acids, aggressive organic solvents, and caustic reagents, ensuring zero sample contamination.

Available in volume capacities ranging from 100 ml up to 20,000 ml with diverse center and side socket joint combinations (including 14/23, 19/26, 24/29, 29/32, 34/35, and 55/44), the Edulabs 2-Neck Angled Round Bottom Flask easily integrates into standardized glassware configurations. Edulabs provides robust, precision-engineered glassware tailored for academic research, pharmaceutical R&D, and industrial quality control.

Key Features

• Crafted from 33 expansion borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A.

• Features two necks: one vertical center socket and one angled side socket joint.

• Angled side neck facilitates simultaneous addition of reagents, temperature monitoring, or gas purging.

• Spherical round-bottom profile delivers uniform thermal distribution during heating.

• Precision-ground socket joints ensure vapor-tight, leak-free seals with modular apparatus.

• High resistance to thermal shock during continuous boiling and cooling cycles.

• Universal chemical resistance against organic solvents, strong acids, and bases.

• Eliminates contamination risks associated with flexible tubing or rubber stoppers.

• Standardized ground joint sizes ensure broad inter-compatibility.

• Wide capacity spectrum from 100 ml to 20,000 ml with diverse joint options.

Technical Specifications

Available Models

Applications

• Organic synthesis reactions requiring concurrent reagent addition via dropping funnel.

• Reflux setups requiring internal reaction temperature monitoring.

• Inert gas purging during air-sensitive chemical reactions.

• Fractional distillation assemblies requiring secondary side connections.

• Active pharmaceutical ingredient (API) synthesis and testing.

• Essential oil extraction and botanical extract concentration.

• Research and development in petrochemical and polymer synthesis.

• Environmental pollutant extractions requiring continuous solvent addition.

• University advanced organic chemistry research laboratories.

• Multi-stage chemical reactions requiring vacuum-assisted sampling.

Note

Edulabs also offers a comprehensive range of laboratory glassware, laboratory plasticware, laboratory chemicals, laboratory instruments, laboratory equipment, scientific apparatus, educational laboratory equipment, and customized laboratory solutions for educational institutions, research laboratories, pharmaceutical industries, healthcare facilities, biotechnology laboratories, environmental testing laboratories, food and beverage laboratories, and industrial quality control laboratories. Contact Edulabs for bulk orders and OEM requirements.