Tungsten was used extensively for the filaments of old-style incandescent light bulbs, its alloys are used in many high-temperature applications, such as arc-welding electrodes and heating elements in high-temperature furnaces. Some bacteria use tungsten in an enzyme to reduce carboxylic acids to aldehydes.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.