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Hafnium nitrate 
Summary
Hafnium(IV) nitrate is an inorganic compound, a salt of hafnium and nitric acid with the chemical formula Hf(NO3)4.[2][3][4]
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| Other names
Hafnium tetranitrate
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3D model (JSmol)
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CompTox Dashboard (EPA)
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| Properties | |
| Hf(NO3)4 | |
| Molar mass | 426.53 g/mol |
| Appearance | White crystals |
| moderately soluble[1] | |
| Hazards | |
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| Danger | |
| H272, H315, H319, H335 | |
| P210, P220, P221, P305, P338, P405, P501 | |
| Related compounds | |
Related compounds
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Thorium nitrate, Zirconium nitrate, titanium nitrate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Synthesis edit
Hafnium nitrate can be prepared by the reaction of hafnium tetrachloride and dinitrogen pentoxide.[5]
Properties edit
Hafnium nitrate is slightly volatile, and can be sublimed at 110 °C and 0.1 mmHg.[6] Hafnium nitrate decomposes on heating (≥ 160°C) to HfO(NO3)2 and then to HfO2.[6]
Applications edit
Hafnium nitrate can be used for the preparation of materials containing hafnium dioxide.[6]
References edit
- ^ "Hafnium Nitrate (CAS: 15509-05-4) | Stanford Advanced Materials". samaterials.com. Retrieved 29 October 2021.
- ^ "Hafnium(IV) nitrate". Sigma Aldrich. Retrieved 29 October 2021.
- ^ "Hafnium Nitrate". American Elements. Retrieved 29 October 2021.
- ^ The Metallurgy of Hafnium. Naval Reactors, Division of Reactor Development, U.S. Atomic Energy Commission. 1960. p. 31. Retrieved 29 October 2021.
- ^ Zhuang, Weiwei; Conley, John F.; Ono, Yoshi; Evans, David R.; Solanki, R. (January 2002). "Hafnium Nitrate Precursor Synthesis and HfO2 Thin Film Deposition". Integrated Ferroelectrics. 48 (1): 3–12. Bibcode:2002InFer..48....3Z. doi:10.1080/10584580215449. S2CID 50290009.
- ^ a b c Conley, J. F.; Ono, Y.; Zhuang, W.; Tweet, D. J.; Gao, W.; Mohammed, S. K.; Solanki, R. (2002). "Atomic Layer Deposition of Hafnium Oxide Using Anhydrous Hafnium Nitrate". Electrochemical and Solid-State Letters. 5 (5): C57. doi:10.1149/1.1462875. ISSN 1099-0062. Retrieved 29 October 2021.