What Are the Uses of Tungsten Wire in Chemistry Laboratories?

In chemistry laboratories, tungsten wire is commonly used for a variety of experiments and applications. Its main uses include:

Heat source: The high melting point and good thermal conductivity of tungsten wire make it an ideal heat source in the laboratory. It can be used to generate high temperatures, for example in melting tests, or to heat reaction vessels, samples or reagents.

Resistance heating: Tungsten wire is a good resistance material and can be used in resistance heating experiments. By applying electricity, tungsten filaments can generate heat, which can be used to control temperature or trigger chemical reactions.

Spectroscopy experiments: Tungsten filaments can be used in spectroscopy experiments, especially in arc spectrometers. Through arc discharge, tungsten wire can generate high-temperature plasma, which is used to analyze the spectral lines of elements.

Electron Microscopy Sample Preparation: During electron microscopy sample preparation, tungsten wire is often used to cut, process and manipulate samples because tungsten wire is very hard and can process samples meticulously.

Electrochemical experiments: In some electrochemical experiments, tungsten wire can be used as electrode material to observe and control electrochemical reactions.

Vacuum system sealing: Due to its high temperature resistance and corrosion resistance, tungsten wire can be used to seal electron beam furnaces in high vacuum systems.

Spark source: In some analytical instruments, such as spark emission spectrometers, tungsten wires can be used as electrodes to generate sparks and analyze samples.