CAS 7440-58-6: Hafnio
Descripción:
Hafnio es un metal de transición con el símbolo químico Hf y el número CAS 7440-58-6. Se caracteriza por su alto punto de fusión, que es uno de los más altos entre todos los elementos, lo que lo hace útil en aplicaciones a alta temperatura. Hafnio tiene un aspecto gris plateado y exhibe un brillo metálico. Es conocido por su excelente resistencia a la corrosión, particularmente en entornos ácidos, debido a la formación de una capa de óxido protectora. Hafnio tiene una densidad relativamente alta y se utiliza a menudo en reactores nucleares, ya que tiene una fuerte capacidad para absorber neutrones. Además, se utiliza en la producción de aleaciones de alto rendimiento y en la industria de semiconductores por sus propiedades como material dieléctrico. Hafnio se encuentra típicamente en minerales de circonio y se extrae a través de procesos como la cristalización fraccionada. Su comportamiento químico es similar al del circonio, y forma varios compuestos, incluido el óxido de Hafnio, que es significativo en electrónica y óptica. En general, las propiedades únicas de Hafnio lo hacen valioso en diversas aplicaciones tecnológicas avanzadas.
Fórmula:Hf
InChI:InChI=1S/Hf
Clave InChI:InChIKey=VBJZVLUMGGDVMO-UHFFFAOYSA-N
SMILES:[Hf]
Sinónimos:- Hafnium crystal bar chips (99.7%
- HafniumfoilNZrmmthickxmmwidegx
- HafniumwireNZrmmdiagcm
- HafniumpowderNZrmesh
- HafniumZrwire
- HafniumpowderZr
- Hafnium foil (99.5%
- Hafnium wire (99.7%
- Hafnium wire (99.97%
- Hafnium
- Celtium
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Hafnium pieces, 3-12mm (0.12-0.47in), 99.9% (metals basis excluding Zr), Zr nominal 2%
CAS:This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:HfPureza:99.9%Peso molecular:178.49Hafnium foil, 0.025mm (0.001in) thick, 99.5% (metals basis excluding Zr), Zr nominal 3%
CAS:This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:HfPureza:99.5%Peso molecular:178.49Hafnium powder, -325 mesh, 99.6% (metals basis excluding Zr), Zr <3.5%
CAS:This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:HfPureza:3.5%Peso molecular:178.49Hafnium powder (99.6%, Zr-2.2%)
CAS:Hafnium powder (99.6%, Zr-2.2%)Fórmula:HfPureza:(99.6%, Zr-2.2%)Forma y color:-325 meshPeso molecular:178.49Hafnium Foil 0.25mm, 99+%
CAS:Fórmula:HfPureza:≥ 99.0%Forma y color:Uniform grey coloured sheetPeso molecular:178.49Hafnium crystal bar chips (99.7%, Zr-~3%)
CAS:Hafnium crystal bar chips (99.7%, Zr-~3%)Fórmula:HfPureza:(99.7%, Zr-~3%)Forma y color:5/8 x 1.5 piecesPeso molecular:178.49Hafnium standard
CAS:Producto controladoHafnium is a chemical element with symbol Hf and atomic number 72. Hafnium is a lustrous, silvery gray, transition metal that has the highest melting point of all metals. It is chemically similar to zirconium and exhibits similar physical properties. The most common oxidation state of hafnium is +4, but compounds in oxidation states +2 and +3 exist as well. Hafnium has no biological role and its toxicity is low. Hafnium's potential applications include fabrication of semiconductors, electrodes for high-temperature gas sensors, nuclear control rods, and quantum computing devices.Fórmula:HfPureza:Min. 95%Peso molecular:178.49 g/molHafnium rod, 6.35mm (0.25in) dia, 99.9% (metals basis excluding Zr), Zr nominal 3%
CAS:This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Pureza:99.9%Hafnium wire, 1.57mm (0.0618in) dia, 99.7% (metals basis excluding Zr), Zr nominal 3%
CAS:This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Pureza:99.7%Hafnium wire, 2.0mm (0.08 in.) dia., 99.7% (metals basis excluding Zr), Zr nominal 3%
CAS:This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:HfPureza:99.7%Forma y color:Wire, 2.0 mm (0.08 in.) dia.Peso molecular:178.49Hafnium foil, 0.25mm (0.01in) thick, annealed, 99.5% (metals basis excluding Zr), Zr nominal 3%
CAS:This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:HfPureza:99.5%Peso molecular:178.49Hafnium foil (99.5%, Zr-2.9%)
CAS:Hafnium foil (99.5%, Zr-2.9%)Fórmula:HfPureza:(99.5%, Zr-2.9%)Forma y color:0.254mm thickPeso molecular:178.49
