PYREX 500mL Round Bottom Boiling Flask with Short Ring Neck – 4260-500

The PYREX 500mL Round Bottom Boiling Flask is a durable laboratory glass flask designed for heating, boiling, chemical mixing and solution preparation. Manufactured from high-quality No. 7740 borosilicate glass, it features a reinforced short ring neck for secure stopper fitting and improved mechanical strength. Its spherical body promotes uniform heating, making it suitable for research, pharmaceutical, industrial and educational laboratories. Key Features - 500mL Capacity: Suitable for laboratory heating, boiling and solution preparation. - 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. 6 rubber stopper. - Heat Resistance: Normal working temperature of 230°C. - Thermal Shock Resistance: Controlled wall thickness improves resistance to thermal stress. - Chemical Durability: Resistant to many commonly used laboratory chemicals. - Reusable Construction: Suitable for repeated laboratory operations. Parameter Specification Brand PYREX Manufacturer Corning Product Code 4260-500 Product Type Laboratory Boiling Flask Nominal Capacity 500mL 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. 6 Stopper Included No Outside Diameter Approximately 102mm Overall Height Approximately 160mm 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, Mixing, Solution Preparation and Routine Laboratory Washing