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Hafnium chloride is the inorganic compound with the formula HfCl4. This colourless solid is the precursor to most hafnium organometallic compounds. It has a variety of highly specialized applications, mainly in materials science and as a catalyst.
H 9934 (OTTO) Hafnium chloride, 98% - Cas 13499-05-3 - used as control rods in nuclear reactors and in manufacture of light bulb filaments.