PYREX 100mL Round Bottom Boiling Flask with Short Neck and 29-42 Standard Taper Joint – 4321-100

The PYREX 100mL Short Neck Round Bottom Boiling Flask is a high-quality borosilicate glass flask designed for laboratory heating, boiling, distillation and chemical solution preparation. Featuring a short neck with a 29/42 standard taper joint, it allows secure connections to compatible laboratory glassware. Its spherical design promotes uniform heating, making it suitable for research, pharmaceutical, analytical and educational laboratories. Key Features - 100mL Capacity: Suitable for small-volume laboratory heating, boiling and chemical reactions. - Borosilicate Glass: Offers excellent chemical durability and resistance to thermal shock. - Round Bottom Design: Promotes uniform heat distribution during controlled heating. - Short Neck: Compact construction for laboratory glassware assemblies. - 29/42 Standard Taper Joint: Full-length ground-glass joint for connection to compatible laboratory apparatus. - Compact Dimensions: Approximately 63mm outside diameter and 120mm overall height. - Organic Chemistry Kit Compatibility: Can serve as a replacement flask for compatible Corning organic chemistry kits, catalogue numbers 6949 through 6949K. - Reusable Construction: Designed for repeated laboratory applications. - Versatile Applications: Suitable for laboratory boiling, heating, distillation and solution preparation. Parameter Specification Brand PYREX Manufacturer Corning Product Code 4321-100 Product Type Laboratory Boiling Flask Nominal Capacity 100mL Material Borosilicate Glass Flask Shape Spherical Bottom Type Round Bottom Neck Style Short Neck Top Style Standard Taper Joint Joint Size 29/42 Joint Type Full-Length Standard Taper Joint Outside Diameter Approximately 63mm Overall Height Approximately 120mm Glass Colour Clear / Transparent Stopper Included No Sterility Non-sterile Reusability Reusable Manufacturer Quantity per Pack 1 Piece Manufacturer Quantity per Case 1 Piece Compatible Kit Series Corning Organic Chemistry Kits 6949–6949K Applications Laboratory Heating, Boiling, Distillation, Chemical Reactions and Solution Preparation