A flat-bottom flask is a stable, versatile lab container, typically made of heat-resistant borosilicate glass, featuring a wide flat base for standing on surfaces and a cylindrical neck for adding stoppers or apparatus, used for mixing, heating, boiling, storage, and basic chemical reactions like titrations, though its flat bottom can cause uneven heating compared to round-bottom flasks.
Key Features:
Shape: Spherical or round body with a flat bottom and a narrow or wide neck.
Material: Usually borosilicate glass (Borosilicate 3.3) for chemical and thermal resistance.
Stability: The flat base allows it to sit securely on a bench or hotplate without a stand.