Hafnium Tetrachloride (HfCl₄) is a white, hygroscopic crystalline compound primarily used as a precursor in the production of hafnium metal and hafnium-based alloys. It is also important in chemical vapor deposition processes, catalyst preparation, and research applications due to its reactivity and high purity. https://www.noahchemicals.com/product/hafnium-iv-chloride-99-pure-60-mesh-hafnium-tetrachloride-hfcl