The Flasks, Round Bottom, 3 Necks, Parallel manufactured by Edulabs is a multi-port glassware vessel designed for advanced synthetic chemistry, multi-phase reactions, and analytical research. Complex chemical synthesis protocols often require simultaneous access for multiple laboratory instruments. This includes running a central overhead stirrer shaft or reflux condenser while concurrently adding liquid reagents, monitoring internal temperature with a thermowell, and bubbling inert gases through the reaction mixture.

This flask features one vertical center ground socket joint accompanied by two vertical side socket joints positioned parallel to the central axis. The parallel orientation provides vertical clearance, allowing heavy condensers, dropping funnels, and stirring motors to be mounted straight up without mechanical interference. The spherical round-bottom profile promotes uniform thermal distribution across the entire liquid volume during heating mantle or oil bath operations, preventing localized overheating and sample degradation.

Manufactured from 33 expansion borosilicate glass, this three-neck flask fulfills USP Type I and ASTM E438, Type I, Class A material standards. The glass formulation delivers a low thermal expansion coefficient, providing high thermal shock durability during continuous boiling and cooling phases. It also exhibits chemical resistance, remaining inert when exposed to concentrated acids, aggressive organic solvents, and alkaline reagents.

Offered in an extensive range of capacities from 250 ml to 20,000 ml with diverse ground joint size combinations (such as 14/23, 19/26, 24/29, 29/32, 34/35, 45/40, and 55/44), the Edulabs Parallel Three-Neck Round Bottom Flask integrates into modular laboratory apparatus configurations. Edulabs delivers precision-manufactured glassware for research facilities, pharmaceutical development labs, and academic institutions.

Key Features

• Made from 33 expansion borosilicate glass meeting USP Type I and ASTM E438, Type I, Class A specifications.

• Features three parallel vertical necks (one central socket flanked by two side sockets).

• Parallel neck orientation permits simultaneous vertical attachment of stirrers, condensers, and funnels.

• Spherical round-bottom profile ensures even thermal distribution across heating surfaces.

• Precision ground glass socket joints deliver vapor-tight seals for closed-system operations.

• High resistance to thermal shock during elevated temperature heating and cooling.

• Universal chemical resistance against aggressive acids, solvents, and bases.

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

• Standardized ground joint sizes ensure broad inter-compatibility with apparatus lines.

• Wide capacity range available from 250 ml up to 20,000 ml.

Technical Specifications

Available Models

Applications

• Complex multi-component organic synthesis requiring overhead mechanical stirring.

• Simultaneous refluxing, reagent addition, and temperature monitoring.

• Inert atmosphere chemical reactions requiring continuous gas purging.

• Fractional distillation setups requiring multiple monitoring and feed channels.

• Pharmaceutical API development and intermediate synthesis.

• Pilot plant chemical scale-up operations (5000 ml to 20,000 ml models).

• Essential oil extraction and botanical extract distillation.

• Petrochemical and polymer synthesis research.

• Environmental contaminant extractions under controlled reflux.

• Advanced organic chemistry research setups in university laboratories.

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.