Laboratory Crucible Heating Setup with Bunsen Burner #3837790 (License: Personal Use)

The image shows a standard laboratory heating apparatus: a Bunsen burner with an adjustable green gas valve produces a blue inner cone and yellow outer flame, directing heat upward through a wire gauze supporting a white ceramic crucible. The crucible rests on a square metal mesh (wire gauze) that distributes heat evenly and prevents direct flame contact, mounted on a stable three-legged iron tripod. This setup is commonly used for high-temperature reactions, calcination, or ash content determination.

Used in educational chemistry labs, instructional manuals, and safety guides to demonstrate proper crucible heating technique; matches user intent for learning lab procedures, equipment identification, or preparing for practical exams.