K2NaTiF6

K2NaTiF6 is an inorganic fluoride compound containing potassium, sodium, and titanium—a mixed-metal fluoride salt rather than a traditional metallic alloy. This material belongs to the class of complex fluoride compounds, which are primarily of research and specialized industrial interest rather than mainstream structural applications. Industrial uses include optics manufacturing (as a dopant or precursor in fluoride glass and crystal production), nuclear fuel processing, and aluminum refining as a flux agent; its notable advantage is the ability to enable lower-temperature processing and improved material properties in fluoride-based optical systems where traditional silicates are unsuitable.