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Hafnium(IV) chloride is used as a precursor for catalyst involved in the Ziegler-Natta polymerization of propylene. It is an effective Lewis acid for various applications in organic synthesis viz alkylation of ferrocene. Further, it increases the rate and control of 1,3-dipolar cycloadditions. It is also used to prepare hafnium dioxide and hafnium silicate, which is used as high-k-dielectrics in the production of integrated circuits.
Patil, S. A.; Medina, P. A.; Antic, A.; Ziller, J. W.; Vohs, J. K.; Fahlman, B. D. Hafnium(IV) chloride complexes with chelating β-ketiminate ligands: Synthesis, spectroscopic characterization and volatility study. Spectrochim. Acta Mol. Biomol. Spectrosc. 2015, 148, 223-231.
Patil, S. A.; Medina, P. A.; Antic, A.; Ziller, J. W.; Vohs, J. K.; Fahlman, B. D. Hafnium complexes with versatile β-diketiminate ligands: Synthesis, spectroscopic investigation and volatility study. Inorg. Chim. Acta 2015, 426, 71-79.
Hazard Statements: H290-H314-H318
May be corrosive to metals. Causes severe skin burns and eye damage. Causes serious eye damage.
Precautionary Statements: P260u-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a
Do not breathe dusts or mists. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.