Zirconium
CAS number : 7440-67-7
Molecular weight :91.22
Molecular formula/chemical symbol :
Description :
zirconium
(Zirconium) is a chemical element, its chemical symbol is Zr, its atomic number
is 40, is one of the high melting point metal of a silver-white, pale gray. A
density of 6.49 g
/ cm 3. The melting point of 1852 ± 2 ℃,
boiling point 4377 ° C. Valence +2, +3 and +4. The first ionization energy of
6.84 electron volts. The surface is easy to form a layer of the zirconium oxide
film, and has a gloss, so similar to the appearance and steel. In corrosion
resistance, can be dissolved in hydrofluoric acid and aqua regia; high
temperatures, can be used with non-metallic elements and many metal elements
reaction, to generate a solid solution compound. Used in the nuclear industry
and the chemical materials used as corrosion resistance in high temperature and
high pressure.
USES :
Report :
Test items
|
Detection value
|
ZrO2
|
≥66%
|
TrO2
|
≤0.15%
|
Fe2O3
|
≤0.07%
|