Round / Flat Bottom Flask with Joint B-24/29

Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. It is known for its high thermal resistance, making it less susceptible to thermal expansion and more resistant to thermal shock than other types of glass. This makes borosilicate glass suitable for a wide range of applications, including laboratory glassware, kitchenware, and industrial glass products.