1111 -Boiling Flask Flat bottom, narrow neck, with beaded rim

Boiling flask is a type of flask used as an item of laboratory glassware . It is used as a container to hold liquids. A Boiling flask has a round body, a long neck, and often a flat bottom. It is designed for uniform heating, boiling, distillation and ease of swirling; it is produced in a number of different glass thicknesses to stand different types of use. They are often made of borosilicate glass for heat and chemical resistance.