GSC International 000-109-10 Watch Glass with Fire-Polished Edge, 90mm Diameter, Pack of 10
The borosilicate watch glass with a fire-polished edge, 90mm diameter, is a concave piece of glassware commonly used in science labs and classrooms.
Its design and finish make it ideal for a variety of tasks due to its smooth edges (thanks to fire-polishing) and durable curvature. Used to evaporate solvents from a solution (e.g., water from saltwater), often by leaving the watch glass in a warm area or placing it on a beaker with a heat source underneath. Serves as a surface for weighing solids, such as powders or crystals, before transferring to a beaker or test tube. Its shallow concave shape increases the surface area, allowing faster evaporation. Its smooth, fire-polished edge makes it safe and easy to handle. Great for demonstrating changes like color shifts, crystallization, or solubility.
PRODUCT WARNINGS
WARNING: This product can expose you to chemicals including nickel and lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.