What Is Thallium Metal?
Thallium is a bluish-white hued metal found in trace amounts throughout the Earth’s crust. In its purest state thallium is both tasteless and odorless, and was once sourced from smelting other metals. Presently our sources of thallium rely on naturally occurring deposits. Thallium uses today commonly include the production of electronic devices, fiber optics, camera lenses, switches, and closures. Thallium metal is used most notably by the semiconductor, fiber optic, and the glass lens industries. Unfortunately, exposure to thallium metal is harmful to those working closely with the metal. When thallium enters the atmosphere, traces of the substance remain after its use in coal-burning and smelting. Thallium metals are detected in the air, water, and soil long after exposure.