Watch Glass, Soda-Lime, Polished Edges, 70mm (2.75")

Watch glass has multiple uses in a laboratory. It may be applied as a jar cover in condensation experiments, a protective lid to prevent contamination by dust particles when using a container, and as an evaporative surface when crystallization or precipitation are being observed. When using Soda-lime watch glass is it important to keep it from direct contact with a heat source.