Ace Glass 4 Neck Round Bottom Flask 2 L 45/50 CN 24/40 SN

Ace Glass SYNF44542L 4-Neck Round Bottom Flask – 2 L, Heavy-Wall Borosilicate

The Ace Glass SYNF44542L is a heavy-duty, 4-neck round bottom flask designed for complex synthetic chemistry and pilot-scale reactions. With a 2-liter capacity, this flask provides ample volume for medium-scale organic synthesis, reflux, and distillation. It features a large 45/50 center neck to accommodate high-torque overhead stirrers or large-diameter condensers, while the three 24/40 side necks allow for the simultaneous integration of addition funnels, thermometers, and inert gas inlets.

Technical Performance & Design

• High-Strength Borosilicate Glass: Fabricated from Ace Glass’s premium borosilicate, offering exceptional thermal shock resistance and chemical durability against aggressive acids, solvents, and halogens.
• 4-Neck Multi-Port Configuration: Features a vertical center neck and three angled or vertical side necks (model dependent), enabling multi-component assemblies without the need for fragile adapters.
• Heavy-Wall Construction: Engineered with increased wall thickness to provide superior mechanical strength, making it safer for use under vacuum or for reactions involving high-viscosity reagents.
• Precision Ground Joints: Equipped with Standard Taper ($) 45/50 and 24/40 joints that are precision-ground to ensure leak-tight connections with minimal high-vacuum grease.

Product Specifications

• Part Number: SYNF44542L
• Capacity: 2000 mL (2 Liter)
• Center Neck Joint: 45/50 Standard Taper
• Side Neck Joints: 24/40 Standard Taper (x3)
• Flask Shape: Round Bottom (Spherical)
• Material: Type I, Class A Borosilicate Glass

Key Benefits & Applications

• Complex Organic Synthesis: The 4-neck design is essential for controlled additions and monitoring, allowing a stirrer, a condenser, a dropping funnel, and a thermocouple to be used simultaneously.
• High-Torque Overhead Stirring: The large 45/50 center neck accommodates heavy-duty stir bearings and shafts, perfect for managing reactions that increase in viscosity or require high-speed agitation.
• Vacuum & Distillation: Ideal for fractional distillation and solvent recovery, where the round bottom geometry ensures uniform heating and minimizes stress points under reduced pressure.
• Scale-Up Research: A versatile tool for process development and scale-up, bridging the gap between small benchtop glassware and larger glass reactors.

Ace Glass™ and its associated logos are trademarks of Ace Glass Incorporated. Standard Taper ($) joints are manufactured in accordance with ASTM E676 specifications.