Zirconium information, including Technical Data, Safety Data and its high purity properties, research, applications and other useful facts are discussed below. Scientific facts such as the atomic structure, ionization energy, abundance on Earth, conductivity and thermal properties are included.
Zirconium’s principal mineral is zircon (Zirconium Silicate) and is primarily used in its oxide or zirconia form. Zirconium dioxide has a high melting point (2,700° C) and a low thermal conductivity. Its polymorphism, however, restricts its widespread use in ceramic industry. During a heating process, zirconia will undergo a phase transformation process. The change in volume associated with this transformation makes the usage of pure zirconia in many applications impossible. Addition of some oxides, such as CaO, MgO, and Y2O3, into the zirconia structure in a certain degree results in a solid solution, which is a cubic form and has no phase transformation during heating and cooling. This solid solution material is termed as stabilized zirconia, a valuable refractory. Stabilized zirconia is used as a grinding media and engineering ceramics due to its increased hardness and high thermal shock resistivity. Stabilized zirconia is also used in applications such as oxygen sensors and solid oxide fuel cells due to its high oxygen ion conductivity.
Zirconium facts, including appearance, CAS #, and molecular formula and safety data, research and properties are available for many specific states, forms and shapes on the product pages listed to the left. Elemental or metallic forms include pellets, rod, wire and granules for evaporation source material purposes. Nanoparticles and nanopowders provide ultra high surface area which nanotechnology research and recent experiments demonstrate function to create new and unique properties and benefits.
Oxides are available in forms including powders and dense pellets for such uses as optical coating and thin film applications. Oxides tend to be insoluble. Fluorides are another insoluble form for uses in which oxygen is undesirable such as metallurgy, chemical and physical vapor deposition and in some optical coatings. Zirconium is available in soluble forms including chlorides, nitrates and acetates. These compounds are also manufactured as solutions at specified stoichiometries.
Zirconium is a Block D, Group 4, Period 5 element. The number of electrons in each of Zirconium's shells is 2, 8, 18, 10, 2 and its electronic configuration is [Kr] 4d2 5s2. In its elemental form zirconium's CAS number is 7440-67-7. The zirconium atom has a radius of 159.pm and it's Van der Waals radius is 200.pm.
Zirconium is non-toxic.
All elemental metals, compounds and solutions may be synthesized in ultra high purity (e.g. 99.999%) for laboratory standards, advanced electronic, thin fillm deposition using sputtering targets and evaporation materials, metallurgy and optical materials and other high technology applications. Information is provided for stable (non-radioactive) isotopes. Organo-Metallic Zirconium compounds are soluble in organic or non-aqueous solvents. See Analytical Services for information on available certified chemical and physical analysis techniques including MS-ICP, X-Ray Diffraction, PSD and Surface Area (BET) analysis.
Zirconium is produced as a by-product of titanium and tin mining. It is not found in nature as a native metal. Zirconium was first discovered by William Gregor in 1791. The name Zirconium originated from the Persian word 'zargun' meaning gold color or gold-like. See Zirconium research below.
zirconium |
Zirconium |
zirconio |
Zircônio |
circonio |
Zirkonium |
Abundance. The following table shows the abundance of zirconium and each of its naturally occurring isotopes on Earth along with the atomic mass for each isotope.
| Isotope |
Atomic Mass |
% Abundance on Earth |
| Zr-90 |
89.904704 |
51.45 |
| Zr-91 |
90.905645 |
11.22 |
| Zr-92 |
91.905040 |
17.15 |
| Zr-94 |
93.906316 |
17.38 |
| Zr-96 |
95.908276 |
2.80 |
The following table shows the abundance of Zirconium present in the human body and in the universe scaled to parts per billion (ppb) by weight and by atom:
| |
Typical Human Body |
Universe |
| by Weight |
50 ppb |
50 ppb |
| by Atom |
3 ppb |
0.7 ppb |
Safety Data and Biological Role . The safety data for zirconium metal, nanoparticles and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the left margin. Zirconium compounds have little effect on human tissue making them suitable for artifical joints and limbs.
Ionization Energy. The ionization energy for zirconium (the least required energy to release a single electron from the atom in it's ground state in the gas phase) is stated in the following table:
| 1st Ionization Energy |
640.08 kJ mol-1 |
| 2nd Ionization Energy |
1266.86 kJ mol-1 |
| 3rd Ionization Energy |
2218.21 kJ mol-1 |
Conductivity. As to zirconium's electrical and thermal conductivity, the electrical conductivity measured as to electrical resistivity @ 20 ºC is 42.1 μΩcm and its electronegativities (or its ability to draw electrons relative to other elements) is 1.33. The thermal conductivity of zirconium is 22.7 W m-1 K-1.
Thermal Properties. The melting point and boiling point for zirconium are stated below. The following chart sets forth the heat of fusion, heat of vaporization and heat of atomization.
| Heat of Fusion |
23 kJ mol-1 |
| Heat of Vaporization |
566.7 kJ mol-1 |
| Heat of Atomization |
607.47 kJ mol-1 |
Recent Research & Development for Zirconium Zirconium arsenate-modified silica nanoparticles for specific capture of phosphopeptides and direct analysis by matrix-assisted laser desorption/ionization mass spectrometry.
Zhao PX, Guo XF, Wang H, Qi CB, Xia HS, Zhang HS.
Anal Bioanal Chem. 2011 Nov 22. [Epub ahead of print]
PMID:
22105300
[PubMed - as supplied by publisher]
A surface derivatization strategy for combinatorial analysis of cell response to mixtures of protein domains.
Chiang C, Karuri SW, Kshatriya PP, Schwartz J, Schwarzbauer JE, Karuri NW.
Langmuir. 2011 Nov 21. [Epub ahead of print]
PMID:
22103809
[PubMed - as supplied by publisher]
Environmentally stable flexible metal-insulator-metal capacitors using zirconium-silicate and hafnium-silicate thin film composite materials as gate dielectrics.
Meena JS, Chu MC, Wu CS, Ravipati S, Ko FH.
J Nanosci Nanotechnol. 2011 Aug;11(8):6858-67.
PMID:
22103091
[PubMed - in process]
Highly sensitive protein kinase activity assay based on electrochemiluminescence nanoprobes.
Zhao Z, Zhou X, Xing D.
Biosens Bioelectron. 2011 Oct 25. [Epub ahead of print]
PMID:
22100765
[PubMed - as supplied by publisher]
Corrosion fatigue behavior of a biocompatible ultrafine-grained niobium alloy in simulated body fluid.
Rubitschek F, Niendorf T, Karaman I, Maier HJ.
J Mech Behav Biomed Mater. 2012 Jan;5(1):181-92. Epub 2011 Sep 8.
PMID:
22100093
[PubMed - in process]
Fabrication and characterization of biocompatible nacre-like structures from a-zirconium hydrogen phosphate hydrate and chitosan.
Waraich SM, Hering B, Burghard Z, Bill J, Behrens P, Menzel H.
J Colloid Interface Sci. 2011 Oct 29. [Epub ahead of print]
PMID:
22099057
[PubMed - as supplied by publisher]
Wear resistance of experimental titanium alloys for dental applications.
Faria AC, Rodrigues RC, Claro AP, de Mattos Mda G, Ribeiro RF.
J Mech Behav Biomed Mater. 2011 Nov;4(8):1873-9. Epub 2011 Jun 15.
PMID:
22098886
[PubMed - in process]
Carbon Fiber-Reinforced Cyanate Ester/Nano-ZrW(2)O(8) Composites with Tailored Thermal Expansion.
Badrinarayanan P, Rogalski MK, Kessler MR.
ACS Appl Mater Interfaces. 2011 Nov 18. [Epub ahead of print]
PMID:
22098430
[PubMed - as supplied by publisher]
Single-step fabrication of nanolamellar structured oxide ceramic coatings by metal-organic chemical vapor deposition.
Eils NK, Mechnich P, Keune H, Wahl G, Klages CP.
J Nanosci Nanotechnol. 2011 Sep;11(9):8396-402.
PMID:
22097592
[PubMed - in process]
Metalcones: hybrid organic-inorganic films fabricated using atomic and molecular layer deposition techniques.
George SM, Lee BH, Yoon B, Abdulagatov AI, Hall RA.
J Nanosci Nanotechnol. 2011 Sep;11(9):7948-55.
PMID:
22097511
[PubMed - in process]
Reliability and fatigue failure modes of implant-supported aluminum-oxide fixed dental prostheses.
Stappert CF, Baldassarri M, Zhang Y, Hänssler F, Rekow ED, Van P Thompson.
Clin Oral Implants Res. 2011 Sep 5. doi: 10.1111/j.1600-0501.2011.02281.x. [Epub ahead of print]
PMID:
22093019
[PubMed - as supplied by publisher]
Titanium-zirconium alloy narrow-diameter implants (Straumann Roxolid(®) ) for the rehabilitation of horizontally deficient edentulous ridges: prospective study on 18 consecutive patients.
Chiapasco M, Casentini P, Zaniboni M, Corsi E, Anello T.
Clin Oral Implants Res. 2011 Aug 18. doi: 10.1111/j.1600-0501.2011.02296.x. [Epub ahead of print]
PMID:
22092806
[PubMed - as supplied by publisher]
Retention of implant-supported zirconium oxide ceramic restorations using different luting agents.
Nejatidanesh F, Savabi O, Shahtoosi M.
Clin Oral Implants Res. 2011 Nov 14. doi: 10.1111/j.1600-0501.2011.02358.x. [Epub ahead of print]
PMID:
22092303
[PubMed - as supplied by publisher]
Tetra-kis(picolinato-?N,O)zirconium(IV) dihydrate.
Steyn M, Visser HG, Roodt A, Muller TJ.
Acta Crystallogr E Struct Rep Online. 2011 Sep 1;67(Pt 9):m1240-1. Epub 2011 Aug 17.
PMID:
22065566
[PubMed]
2,4-Pentanediolate as an Alkoxide/Diketonate "Hybrid" Ligand and the Formation of Aluminum and Zirconium Derivatives.
Bierschenk EJ, Wilk NR, Hanusa TP.
Inorg Chem. 2011 Nov 4. [Epub ahead of print]
PMID:
22053749
[PubMed - as supplied by publisher]
Ultrasound-assisted synthesis of mesoporous zirconia-hydroxyapatite nanocomposites and their dual surface affinity for Cr3+/Cr2O72- ions.
Achelhi K, Masse S, Laurent GP, Roux C, Laghzizil A, Saoiabi A, Coradin T.
Langmuir. 2011 Nov 4. [Epub ahead of print]
PMID:
22053732
[PubMed - as supplied by publisher]
Synthesis, Characterization, and Materials Chemistry of Group 4 Silylimides.
Cosham SD, Johnson AL, Molloy KC, Kingsley AJ.
Inorg Chem. 2011 Nov 4. [Epub ahead of print]
PMID:
22053704
[PubMed - as supplied by publisher]
Influence of cement thickness on resin-zirconia microtensile bond strength.
Lee TH, Ahn JS, Shim JS, Han CH, Kim SJ.
J Adv Prosthodont. 2011 Sep;3(3):119-25. Epub 2011 Sep 25.
PMID:
22053241
[PubMed]
Reliability of a new biokinetic model of zirconium in internal dosimetry: part ii, parameter sensitivity analysis.
Li WB, Greiter M, Oeh U, Hoeschen C.
Health Phys. 2011 Dec;101(6):677-92.
PMID:
22048486
[PubMed - in process]
Reliability of a new biokinetic model of zirconium in internal dosimetry: part I, parameter uncertainty analysis.
Li WB, Greiter M, Oeh U, Hoeschen C.
Health Phys. 2011 Dec;101(6):660-76.
PMID:
22048485
[PubMed - in process] |