PYREX 22L Round Bottom Boiling Flask with Short Ring Neck – 4260-22L

The PYREX 22L Round Bottom Boiling Flask is a large-capacity laboratory glass flask manufactured from high-quality No. 7740 borosilicate glass for laboratory heating, boiling, mixing and chemical solution preparation. It features a reinforced short ring neck for reliable stopper fitting and enhanced mechanical strength. Its spherical design supports uniform heat distribution, while its chemical durability and thermal shock resistance make it suitable for research, industrial, pharmaceutical and analytical laboratories. Key Features - 22L Capacity: Ideal for large-volume laboratory preparations, boiling and mixing. - Borosilicate Glass: Manufactured from durable PYREX No. 7740 glass. - Round Bottom Design: Supports uniform heat distribution during controlled heating. - Short Ring Neck: Precisely tooled for uniform rubber stopper fitting. - Reinforced Rim: Improves mechanical strength and durability. - Stopper Compatibility: Designed to accommodate a No. 14 rubber stopper. - Heat Resistance: Normal working temperature of 230°C. - Chemical Resistance: Excellent durability against a wide range of laboratory chemicals. - Controlled Wall Thickness: Provides a balance of thermal shock resistance and mechanical strength. - Reusable Construction: Suitable for repeated laboratory use. Parameter Specification Brand PYREX Manufacturer Corning Product Code 4260-22L Product Type Laboratory Boiling Flask Nominal Capacity 22,000mL (22 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. 14 Stopper Included No Outside Diameter Approximately 349mm Overall Height Approximately 426mm 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 1 Piece Applications Laboratory Heating, Boiling, Chemical Mixing, Solution Preparation and Laboratory Washing