Rundbottnade

Rundbottnade, also known as round-bottomed flasks, are laboratory glassware used for heating and mixing liquids. They are characterized by their cylindrical shape with a rounded bottom, which provides stability and prevents the flask from tipping over during heating. The rounded bottom also helps to distribute heat evenly, ensuring consistent heating of the liquid contents.

Rundbottnade are typically made of borosilicate glass, which is resistant to thermal shock and chemical corrosion. This makes them suitable for use with a wide range of chemicals and temperatures. The flasks are often equipped with a side arm for adding reagents or gases, and a ground glass joint for connecting to other glassware or vacuum systems.

These flasks are commonly used in various laboratory procedures, including distillation, reflux, and synthesis of chemicals. They are available in different sizes and volumes to accommodate different experimental needs. The use of rundbottnade requires careful handling to prevent breakage, as they are fragile and can shatter if dropped or subjected to sudden temperature changes.