What is round bottom flask?

A round bottom flask, also known as a boiling flask, is a type of laboratory glassware commonly used in chemical reactions and distillation procedures.

The flask has a round, flat bottom that allows it to sit securely on a flat surface, making it ideal for heating and stirring liquids. It is typically made of borosilicate glass, which is resistant to high temperatures and thermal shock.

Round bottom flasks come in various sizes, ranging from a few milliliters to several liters, and are available in both regular and heavy-walled versions for increased durability. They are often used in conjunction with a glass stopper or a rubber stopper to seal the flask during experiments.

The shape of the round bottom flask allows for uniform heating of liquids and creates a larger surface area for evaporation, making it suitable for a wide range of laboratory applications, such as refluxing, distillation, and chemical synthesis.