What are the things made from krypton?

Answer 1

Krypton is a noble gas; and as such has extremely few chemical reactions, and no stable chemical compounds. Like neon and argon, its chemical cousins, it fluoresces when electricity is applied; so it does see some use in specialty lighting (similar to neon signs).

One key use, important to the semiconductor industry, is as a powerful ultraviolet laser. Molecules of krypton temporarily bond with fluorine, one of the most chemically active elements, and then release their energy in the wavelengths well beyond visible light. A higher wavelength means both more energy and a thinner, more precise laser; this combination allows computer chip manufacturers to pack ever more transistors (into the tens of billions) onto a single chip.

It's also used in the aerospace industry; certain spark gap assemblies have a tiny amount of the gas, which improves their efficiency. And one isotope of krypton has found use in the medical field: when inhaled, krypton-83 shows up in breathing passages in an MRI, allowing certain medical issues to be detected. It has a similar use in CT scans, where it is often mixed with its heavier cousin xenon.

Answer 2

Krypton gas is primarily used in lighting, such as in fluorescent bulbs and high-intensity discharge lamps. It is also used in some types of lasers, like excimer lasers. Additionally, krypton is used in the production of insulated glass units for windows.