PYREX 50mL Round Bottom Boiling Flask with Short Neck and 24-40 Joint – 4320A-50

The PYREX 50mL Round Bottom Boiling Flask is a precision laboratory glass flask designed for small-volume heating, boiling, distillation and chemical solution preparation. Manufactured from No. 7740 borosilicate glass, it features a short neck with a 24/40 standard taper joint for connection to compatible laboratory glassware. Its round-bottom design promotes uniform heating, while its excellent chemical durability and thermal shock resistance make it suitable for research, pharmaceutical, analytical and educational laboratories. Key Features - 50mL Capacity: Suitable for small-volume laboratory heating, boiling and chemical reactions. - Borosilicate Glass: Manufactured from PYREX No. 7740 glass for excellent chemical and thermal resistance. - Round Bottom Design: Promotes uniform heat distribution during controlled heating. - Short Neck: Compact construction suitable for laboratory apparatus assemblies. - 24/40 Standard Taper Joint: Full-length outer joint for connection to compatible laboratory glassware. - Controlled Wall Thickness: Balances mechanical strength and resistance to thermal shock. - Heat Resistance: Normal working temperature of 230°C. - Chemical Durability: Resistant to many commonly used laboratory chemicals. - Compact Dimensions: Approximately 49mm outside diameter and 98mm overall height. - Reusable Construction: Designed for repeated laboratory operations. Parameter Specification Brand PYREX Manufacturer Corning Product Code 4320A-50 Product Type Laboratory Boiling Flask Nominal Capacity 50mL Material No. 7740 Borosilicate Glass Flask Shape Spherical Bottom Type Round Bottom Neck Style Short Neck Top Style Standard Taper Joint Joint Size 24/40 Joint Type Full-Length Outer Standard Taper Joint Outside Diameter Approximately 49mm Overall Height Approximately 98mm Normal Working Temperature 230°C Thermal Resistance Thermal Shock Resistant Chemical Resistance Excellent Chemical Durability Glass Colour Clear / Transparent Stopper Included No Reusability Reusable Manufacturer Quantity per Pack 12 Pieces Manufacturer Quantity per Case 12 Pieces Applications Laboratory Heating, Boiling, Distillation, Chemical Reactions and Solution Preparation