Used as a reducing agent in organic synthesis, particularly in the dehalogenation of vicinal dihalides to form alkenes. Employed in the preparation of other tellurium-containing compounds, including organotellurides which have applications in materials science and medicinal chemistry. Serves as a precursor in the synthesis of semiconductor materials and nanocrystals, especially cadmium or lead telluride-based quantum dots used in optoelectronic devices and solar cells. Also utilized in research settings for the generation of telluride ions in solution, enabling the study of tellurium’s redox chemistry and its role in catalytic processes. Must be handled with care due to its sensitivity to moisture and air.