Hafnium(Hf) Element

Hafnium is a lustrous, silvery, ductile metal. It restists corrosion due to formation of a tough, impenetrable oxide film on its surface. The metal is unaffected by alkalis and acids, except hydrofluoric acid. Hafnium is difficult to separate form zirconium, bacause the two elements have atoms that are the same size.Hafnium and its alloys are used for control rods in nuclear reactors and nuclear submarines because hafnium is excellent at absorbing neutrons and it has a very high melting point and is corrosion resistant. It is used in high-temperature alloys and ceramics, since some of its compounds are very refractory: they will not melt except under the most extreme temperatures.

Basic Infomation

Name: Hafnium

Symbol: Hf

Atomic Number: 72

Atomic Mass: 178.49 amu

Melting Point: 2150.0 °C (2423.15 °K, 3902.0 °F)

Boiling Point: 5400.0 °C (5673.15 °K, 9752.0 °F)

Number of Protons/Electrons: 72

Number of Neutrons: 106

Classification: Transition Metal

Crystal Structure: Hexagonal

Density @ 293 K: 13.2 g/cm3

Color: Silver

Products

Name	Sign	Purity	Shape
Hafnium Wire	Hf	99.5％,99.9％	Wire
Hafnium Evaporation Material	Hf	99.5％,99.9％	Irregular pieces, Wire, Rod, flakes.
Hafnium Rod	Hf	99.5％,99.9％	Rod
Hafnium Sputtering Target	Hf	99.5％, 99.9％ Speciafication --- Application ---	Discs, Rod, Taper,Sheet, Plate, Rectangle,Tube
Hafnium Tube	Hf	99.5％,99.9％	Tube
High Purity Hafnium Metal	Hf	99.9％	Crystal rod, lump
Hafnium Oxide Evaporation Material	HfO2	99.95％	Solid substance, White or grey tablets, Powder
Hafnium Oxide Powder	HfO2	99.95％	Powder
Hafnium Oxide Sputtering Target	HfO2	99.95％	Discs, Plate, Step,Rectangle, Sheet