PYREX® 250mL Round Bottom Short Neck Boiling Flask with 24-40 Standard Taper Joint 4320-250

PYREX® 250mL Round Bottom Short Neck Boiling Flask is manufactured from No. 7740 borosilicate glass for heating, boiling, distillation and chemical reactions. Its round-bottom design supports uniform heating, while the short neck and standard taper ground glass joint allow connections to compatible laboratory apparatus. Key Features & Specifications - Capacity: 250mL - Material: No. 7740 borosilicate glass - Flask Type: Round bottom boiling flask - Bottom Design: Round bottom - Neck Style: Short neck - Joint Type: Standard taper ground glass joint - Joint Size: 24/40 - Overall Height: Approximately 140mm - Outer Diameter: Approximately 83mm - Normal Working Temperature: Up to 230°C - Chemical Resistance: Excellent durability against many laboratory chemicals - Thermal Resistance: Controlled wall thickness for improved resistance to thermal shock - Application: Laboratory heating, boiling, distillation, reflux and chemical synthesis - Packaging: 2 flasks per manufacturer's pack; 12 per case - Stopper Included: No - Manufacturer: Corning - Product Code: 4320-250