Round Bottom Narrow Neck Florence Borosilicate Glass Boiling Flask

This Eisco Labs 25mL Boiling Flask is constructed from high-quality borosilicate glass and features a round bottom, narrow neck, and beaded rim. The flask stands 3.5" tall with a 1.75" bottom diameter, a 2" neck length, and a 0.6" neck inner diameter. The round-bottom design distributes heat evenly during boiling and distillation, while the narrow neck reduces evaporation and facilitates connection to condensers and other glassware. Borosilicate construction provides excellent thermal shock resistance and chemical durability. Suitable for science classrooms and home laboratories.