PYREX 1L Round Bottom Boiling Flask with Short Ring Neck – 4260-1L

The PYREX 1L Round Bottom Boiling Flask is a high-quality laboratory glass flask designed for heating, boiling, chemical mixing and solution preparation. Manufactured from durable No. 7740 borosilicate glass, it features a short ring neck with a reinforced rim for secure stopper fitting and improved strength. Its spherical design supports uniform heating, making it suitable for research, educational, pharmaceutical and analytical laboratories. Key Features - 1L Capacity: Suitable for medium-volume laboratory heating and chemical preparations. - Borosilicate Glass: Manufactured from PYREX No. 7740 glass with excellent chemical and thermal resistance. - Round Bottom Design: Promotes uniform heat distribution. - Short Ring Neck: Precisely tooled for consistent rubber stopper fitting. - Reinforced Rim: Provides additional mechanical strength. - Stopper Compatibility: Accepts a No. 8 rubber stopper. - Heat Resistance: Normal working temperature of 230°C. - Thermal Shock Resistance: Controlled wall thickness enhances durability. - Reusable Construction: Suitable for repeated laboratory operations. - Versatile Applications: Suitable for boiling, mixing, chemical preparation and laboratory washing. Parameter Specification Brand PYREX Manufacturer Corning Product Code 4260-1L Product Type Laboratory Boiling Flask Nominal Capacity 1000mL (1 Litre) 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. 8 Stopper Included No Outside Diameter Approximately 130mm Overall Height Approximately 185mm Normal Working Temperature 230°C Thermal Resistance Thermal Shock Resistant Chemical Resistance Excellent Chemical Durability Glass Colour Clear / Transparent Reusability Reusable Quantity per Pack 6 Pieces Quantity per Case 12 Pieces Applications Laboratory Heating, Boiling, Mixing and Solution Preparation