Search results
Results from the WOW.Com Content Network
Zirconium dioxide (ZrO. 2), sometimes known as zirconia (not to be confused with zircon), is a white crystalline oxide of zirconium. Its most naturally occurring form, with a monoclinic crystalline structure, is the mineral baddeleyite. A dopant [clarification needed] stabilized cubic structured zirconia, cubic zirconia, is synthesized in ...
Zirconium is a chemical element; it has symbol Zr and atomic number 40. First identified in 1789, isolated in impure form in 1824, and manufactured at scale by 1925, pure zirconium is a lustrous transition metal with a greyish-white color that closely resembles hafnium and, to a lesser extent, titanium. It is solid at room temperature, ductile ...
Zirconium hydride is created by combining refined zirconium with hydrogen. Like titanium, solid zirconium dissolves hydrogen quite readily. The density of zirconium hydride varies based the hydrogen and ranges between 5.56 and 6.52 g cm −3. Even in the narrow range of concentrations which make up zirconium hydride, mixtures of hydrogen and ...
Zirconium silicate, also zirconium orthosilicate, ZrSiO 4, is a chemical compound, a silicate of zirconium. It occurs in nature as zircon, a silicate mineral. Powdered zirconium silicate is also known as zircon flour. Zirconium silicate is usually colorless, but impurities induce various colorations. It is insoluble in water, acids, alkali and ...
A diatomic molecular orbital diagram is used to understand the bonding of a diatomic molecule. MO diagrams can be used to deduce magnetic properties of a molecule and how they change with ionization. They also give insight to the bond order of the molecule, how many bonds are shared between the two atoms. [12]
Zirconium (II) hydride has a dihedral (C 2v) structure. In zirconium (II) hydride, the formal oxidation states of zirconium and hydrogen are +2 and −1, respectively, because the electronegativity of zirconium is lower than that of hydrogen. The stability of metal hydrides with the formula MH2 (M = Ti, Zr, Hf) decreases from Ti to Hf.
ZrCl 4 is the principal starting compound for the synthesis of many organometallic complexes of zirconium. [8] Because of its polymeric structure, ZrCl 4 is usually converted to a molecular complex before use. It forms a 1:2 complex with tetrahydrofuran: CAS [21959-01-3], mp 175–177 °C. [9]
Zirconium acetylacetonate. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Zirconium acetylacetonate is the coordination complex with the formula Zr (C 5 H 7 O 2) 4. It is a common acetylacetonate of zirconium. It is a white solid that exhibits high solubility in nonpolar organic ...