PYREX 2L Round Bottom Boiling Flask with Short Ring Neck – 4260-2L

The PYREX 2L Round Bottom Boiling Flask is a high-quality laboratory glass flask designed for heating, boiling, mixing and chemical solution preparation. Manufactured from durable No. 7740 borosilicate glass, it features a short ring neck with a reinforced rim for improved mechanical strength and uniform stopper fitting. Its spherical design supports even heat distribution, making it suitable for research, pharmaceutical, educational and industrial laboratories. Key Features - 2L Capacity: Suitable for medium-to-large-volume laboratory heating and chemical preparations. - Borosilicate Glass: Manufactured from PYREX No. 7740 glass for excellent thermal and chemical resistance. - Round Bottom Design: Promotes uniform heat distribution during controlled heating. - Short Ring Neck: Precisely tooled for consistent rubber stopper fitting. - Reinforced Rim: Improves mechanical strength and durability. - Stopper Compatibility: Accepts a No. 10 rubber stopper. - Heat Resistance: Normal working temperature of 230°C. - Thermal Shock Resistance: Controlled wall thickness enhances resistance to thermal stress. - Chemical Durability: Suitable for use with many common laboratory chemicals. - Reusable Construction: Designed for repeated laboratory applications. Parameter Specification Brand PYREX Manufacturer Corning Product Code 4260-2L Product Type Laboratory Boiling Flask Nominal Capacity 2000mL (2 Litres) Material No. 7740 Borosilicate Glass Flask Shape Spherical Bottom Type Round Bottom Neck Style Short Ring Neck Top Style Ring Mouth Design Reinforced Ring Opening Rubber Stopper Size No. 10 Stopper Included No Outside Diameter Approximately 162mm Overall Height Approximately 232mm Normal Working Temperature 230°C Thermal Resistance Thermal Shock Resistant Chemical Resistance Excellent Chemical Durability Glass Colour Clear / Transparent Reusability Reusable Quantity per Pack 1 Piece Quantity per Case 18 Pieces Applications Laboratory Heating, Boiling, Mixing, Solution Preparation and Routine Washing