Titanium is a Block D, Group 4, Period 4 element. The number of electrons in each of Titanium's shells is 2, 8, 10, 2 and its electronic configuration is [Ar] 3d2 4s2. In its elemental form titanium's CAS number is 7440-32-6. The titanium atom has a radius of 144.8.pm and it's Van der Waals radius is 200.pm. Titanium metal is not considered to be toxic although titanium as metal shavings or powder is considered a fire hazard. In its metallic form it is not only very strong and light weight, but also highly resistant to corrosion. Thus it can be found in numerous aerospace and military applications. In its oxide form it used in low grades to produce a white pigment. Titanium is the bases for numerous commercially essential compound groups, such as titanium titanates in electronic and di-electric formulations and in crystal growth for ruby and sapphire lasers. Titanium information, including Technical Data, Safety Data and its high purity properties, research, applications and other useful facts are discussed here. Scientific facts such as the atomic structure, ionization energy , abundance on Earth, conductivity and thermal properties are included. Titanium was first discovered by William Gregor in 1791. Titanium was named after the word Titanos which is Greek for Titans. See Titanium research below.
Chromium is a Block D, Group 6, Period 4 element. The number of electrons in each of Chromium's shells is 2, 8, 13, 1 and its electronic configuration is [Ar] 3d5 4s1. In its elemental form chromium's CAS number is 7440-47-3. The chromium atom has a radius of 124.9.pm and it's Van der Waals radius is 200.pm. Hexavalent chromium is toxic. Chromium is highly resistant to corrosion. This has led to its use in numerous alloying and steel producing applications. When chromium is added to glass or ceramic glazes, it produces a brilliant green. Chromium is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. It is also used as a paint pigment for this purpose.Although chromium metal is an essential trace element, hexavalent chromium (Cr(VI)) is especially toxic and carcinogenic. Recently, chromites have formed the basis for cathode compositions for oxygen generation and fuel cell applications. Chromium information, including Technical Data, Safety Data and its High Purity properties, research, applications and other useful facts are discussed here. Scientific facts such as the atomic structure, ionization energy, abundance on Earth, conductivity and thermal properties are included. Chromium was first discovered by Anders Ekeberg in 1802. Due to its various colorful compounds, Chromium was named after the Greek word 'chroma' meaning color. See Chromium research below.
Anticancer efficacy enhancement and attenuation of side effects of doxorubicin with titanium dioxide nanoparticles.
Chen Y, Wan Y, Wang Y, Zhang H, Jiao Z.
Int J Nanomedicine. 2011;6:2321-6. Epub 2011 Oct 18.
PMID:
22072869
[PubMed - in process]
Keyhole Cochlear Implantation: Current Status.
Black B.
Otol Neurotol. 2011 Nov 8. [Epub ahead of print]
PMID:
22072266
[PubMed - as supplied by publisher]
Characterization of a hydroxyapatite sputtered film subject to hydrothermal treatment using FE-SEM and STEM.
Ozeki K, Aoki H, Masuzawa T.
Biomed Mater Eng. 2011 Jan 1;21(3):179-89.
PMID:
22072082
[PubMed - in process]
In vitro evaluation of cytotoxicity of permanent prosthetic materials.
Sabaliauskas V, Juciute R, Bukelskiene V, Rutkunas V, Trumpaite-Vanagiene R, Puriene A.
Stomatologija. 2011;13(3):75-80.
PMID:
22071414
[PubMed - in process]
Effect of ionic products of dicalcium silicate coating on osteoblast differentiation and collagen production via TGF-ß1 pathway.
Li J, Wei L, Sun J, Guan G.
J Biomater Appl. 2011 Nov 9. [Epub ahead of print]
PMID:
22071351
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Reconstruction of defects of maxillary sinus wall after removal of a huge odontogenic lesion using prebended 3D titanium-mesh and CAD/CAM technique - Methodology article -
Stoetzer M, Rana M, Von See C, Eckardt AM, Gellrich NC.
Head Face Med. 2011 Nov 9;7(1):21. [Epub ahead of print]
PMID:
22070833
[PubMed - as supplied by publisher]
Total Synthesis of (-)-Virginiamycin M2: Application of Crotylsilanes Accessed by Enantioselective Rh(II) or Cu(I) Promoted Carbenoid Si-H Insertion.
Wu J, Panek JS.
J Org Chem. 2011 Nov 9. [Epub ahead of print]
PMID:
22070230
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Reduced stress shielding with limited micromotions using a carbon fibre composite biomimetic hip stem: a finite element model.
Caouette C, Yahia LH, Bureau MN.
Proc Inst Mech Eng H. 2011 Sep;225(9):907-19.
PMID:
22070028
[PubMed - in process]
Numerical simulation of bone remodelling around dental implants.
Ojeda J, Martínez-Reina J, García-Aznar JM, Domínguez J, Doblaré M.
Proc Inst Mech Eng H. 2011 Sep;225(9):897-906.
PMID:
22070027
[PubMed - in process]
[Application of titanium plate and Teflon patch in chest wall reconstruction after sternal. tumor resection].
Wu X, Chen M, Yu F.
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi. 2011 Oct;25(10):1224-6. Chinese.
PMID:
22069979
[PubMed - in process]
Dietary Exposure Estimates of 14 Trace Elements in Xuanwei and Fuyuan, Two High Lung Cancer Incidence Areas in China.
Zhang L, Lv J, Liao C.
Biol Trace Elem Res. 2011 Nov 9. [Epub ahead of print]
PMID:
22068732
[PubMed - as supplied by publisher]
Comparative approach to capture bacterial diversity of coastal waters.
Na H, Kim OS, Yoon SH, Kim Y, Chun J.
J Microbiol. 2011 Oct;49(5):729-40. Epub 2011 Nov 9.
PMID:
22068488
[PubMed - in process]
Combined Use of Titanium Mesh and Resorbable PLLA-PGA Implant in the Treatment of Large Orbital Floor Fractures.
Magana FG, Arzac RM, De Hilario Aviles L.
J Craniofac Surg. 2011 Nov 5. [Epub ahead of print]
PMID:
22067850
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No improvement in long-term wear and revision rates with the second-generation Biomet cup (RingLoc) in young patients.
Boesenach B, van der Heide HJ, Nelissen RG.
Acta Orthop. 2011 Nov 9. [Epub ahead of print]
PMID:
22066563
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Clinical outcomes of TS-1 chemotherapy for advanced and recurrent gastric cancer.
Lee SR, Kim HO, Yoo CH.
J Korean Surg Soc. 2011 Sep;81(3):163-8. Epub 2011 Sep 26.
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22066117
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Melanosis ilei induced by prolonged charcoal ingestion.
Kim GM, Jun EJ, Kim YC, Park JM, Hong SI, Cheung DY, Kim JI, Lee YS.
J Korean Surg Soc. 2011 Jul;81(1):66-9. Epub 2011 Jul 11.
PMID:
22066103
[PubMed]
The mixed-valent titanium phosphate, Li(2)Ti(2)(PO(4))(3), dilithium dititanium(III/IV) tris-(orthophosphate).
Kee Y, Lee SS, Yun H.
Acta Crystallogr E Struct Rep Online. 2011 Sep 1;67(Pt 9):i49. Epub 2011 Aug 17.
PMID:
22065701
[PubMed]
Transition from Anodic Titania Nanotubes to Nanowires: Arising from Nanotube Growth to Application in Dye-Sensitized Solar Cells.
Sun L, Zhang S, Wang X, Sun XW, Ong DY, Wang X, Zhao D.
Chemphyschem. 2011 Nov 7. doi: 10.1002/cphc.201100450. [Epub ahead of print]
PMID:
22065460
[PubMed - as supplied by publisher]
Influence of metal ions on human lymphocytes and the generation of titanium-specific T-lymphocytes.
Chan E, Cadosch D, Gautschi OP, Sprengel K, Filgueira L.
J Appl Biomater Biomech. 2011 May-Aug;9(2):137-43. doi: 10.5301/JABB.2011.8567.
PMID:
22065391
[PubMed - in process]
trans-Tetra-carbonyl-bis-[tris-(3-fluoro-phen-yl)phosphane]chromium(0).
Norlidah MN, Yazid MY, Shawkataly OB, Rosli MM, Fun HK.
Acta Crystallogr Sect E Struct Rep Online. 2011 Dec 1;67(Pt 12):m1652-m1653. Epub 2011 Nov 2.
PMID:
22199480
[PubMed - as supplied by publisher]
Preparation and characterization of La(III) encapsulated silica gel/chitosan composite and its metal uptake studies.
Gandhi MR, Meenakshi S.
J Hazard Mater. 2011 Nov 28. [Epub ahead of print]
PMID:
22197561
[PubMed - as supplied by publisher]
Electro-migration of heavy metals in an aged electroplating contaminated soil affected by the coexisting hexavalent chromium.
Zhang W, Zhuang L, Tong L, Lo IM, Qiu R.
Chemosphere. 2011 Dec 23. [Epub ahead of print]
PMID:
22197017
[PubMed - as supplied by publisher]
Angular momentum conservation in dipolar energy transfer.
Guo D, Knight TE, McCusker JK.
Science. 2011 Dec 23;334(6063):1684-7.
PMID:
22194572
[PubMed - in process]
Selected Trace Elements in the Sacramento River, California: Occurrence and Distribution.
Taylor HE, Antweiler RC, Roth DA, Alpers CN, Dileanis P.
Arch Environ Contam Toxicol. 2011 Dec 23. [Epub ahead of print]
PMID:
22193863
[PubMed - as supplied by publisher]
Chromium and genomic stability.
Wise SS, Wise JP Sr.
Mutat Res. 2011 Dec 13. [Epub ahead of print]
PMID:
22192535
[PubMed - as supplied by publisher]
A Theoretical Evaluation of Ethylene Insertion into Chromium Alkyl Bonds of Cp-Donor based Olefin Polymerization Catalysts.
Xu R, Klatt G, Enders M, Koeppel H.
J Phys Chem A. 2011 Dec 22. [Epub ahead of print]
PMID:
22191673
[PubMed - as supplied by publisher]
Adsorption of hexavalent chromium from aqueous solution by modified corn stalk: A fixed-bed column study.
Chen S, Yue Q, Gao B, Li Q, Xu X, Fu K.
Bioresour Technol. 2011 Dec 3. [Epub ahead of print]
PMID:
22189077
[PubMed - as supplied by publisher]
Occurrence of Multidrug-Resistant and Toxic-Metal Tolerant Enterococci in Fresh Feces from Urban Pigeons in Brazil.
da Silva VL, Caçador NC, da Silva CD, Fontes CO, Garcia GD, Nicoli JR, Diniz CG.
Microbes Environ. 2011 Dec 22. [Epub ahead of print]
PMID:
22188908
[PubMed - as supplied by publisher]
Revision of a tibial baseplate using a customized oxinium component in a case of suspected metal allergy. A case report.
Van Opstal N, Verheyden F.
Acta Orthop Belg. 2011 Oct;77(5):691-5.
PMID:
22187849
[PubMed - in process]
Retention Strength of Cobalt-Chromium vs Nickel-Chromium Titanium vs CP Titanium in a Cast Framework Association of Removable Partial Overdenture.
Souza JE, Silva NR, Coelho PG, Zavanelli AC, Ferracioli RC, Zavanelli RA.
J Contemp Dent Pract. 2011 May 1;12(3):179-86.
PMID:
22186813
[PubMed - in process]
Metal analysis, phytotoxic, insecticidal and cytotoxic activities of selected medicinal plants of Khyber Pakhtunkhwa.
Khuda F, Iqbal Z, Zakiullah -, Khan A, Nasir F, Muhammad N, Khan JA, Khan MS.
Pak J Pharm Sci. 2012 Jan;25(1):51-58.
PMID:
22186309
[PubMed - as supplied by publisher]
Correlation between metal allergy and treatment outcomes after ankle fracture fixation.
So S, Harris IA, Naylor JM, Adie S, Mittal R.
J Orthop Surg (Hong Kong). 2011 Dec;19(3):309-13.
PMID:
22184160
[PubMed - in process]
Enhancement of the acute phase response to a lipopolysaccharide challenge in steers supplemented with chromium.
Burdick NC, Bernhard BC, Carroll JA, Rathmann RJ, Johnson BJ.
Innate Immun. 2011 Dec 16. [Epub ahead of print]
PMID:
22180563
[PubMed - as supplied by publisher]
Identification and hexavalent chromium reduction characteristics of Pannonibacter phragmitetus.
Shi Y, Chai L, Yang Z, Jing Q, Chen R, Chen Y.
Bioprocess Biosyst Eng. 2011 Dec 18. [Epub ahead of print]
PMID:
22179413
[PubMed - as supplied by publisher]
Exposure to particulate hexavalent chromium exacerbates allergic asthma pathology.
Schneider BC, Constant SL, Patierno SR, Jurjus RA, Ceryak SM.
Toxicol Appl Pharmacol. 2011 Dec 9. [Epub ahead of print]
PMID:
22178736
[PubMed - as supplied by publisher]
Circulating levels of metals are related to carotid atherosclerosis in elderly.
Lind PM, Olsén L, Lind L.
Sci Total Environ. 2011 Dec 15. [Epub ahead of print]
PMID:
22178028
[PubMed - as supplied by publisher]
Highly active nanoscale zero-valent iron (nZVI)-Fe(3)O(4) nanocomposites for the removal of chromium(VI) from aqueous solutions.
Lv X, Xu J, Jiang G, Tang J, Xu X.
J Colloid Interface Sci. 2011 Dec 1. [Epub ahead of print]
PMID:
22177747
[PubMed - as supplied by publisher]
Airborne concentrations of metals and total dust during solid catalyst loading and unloading operations at a petroleum refinery.
Lewis RC, Gaffney SH, Le MH, Unice KM, Paustenbach DJ.
Int J Hyg Environ Health. 2011 Dec 14. [Epub ahead of print]
PMID:
22177528
[PubMed - as supplied by publisher]
Simultaneous Synthesis of Both Rings of Chromenes via a Benzannulation/o-Quinone Methide Formation/Electrocyclization Cascade.
Majumdar N, Korthals KA, Wulff WD.
J Am Chem Soc. 2011 Dec 16. [Epub ahead of print]
PMID:
22176537
[PubMed - as supplied by publisher]
Tailoring nanostructured, graded, and particle-reinforced Al laminates by accumulative roll bonding.
Göken M, Höppel HW.
Adv Mater. 2011 Jun 17;23(22-23):2663-8.
PMID:
21823248
[PubMed - in process]
Highly monodisperse core-shell particles created by solid-state reactions.
Radmilovic V, Ophus C, Marquis EA, Rossell MD, Tolley A, Gautam A, Asta M, Dahmen U.
Nat Mater. 2011 Aug 7. doi: 10.1038/nmat3077. [Epub ahead of print]
PMID:
21822262
[PubMed - as supplied by publisher]
Aerosol Deposition of Hydroxyapatite and 4-Hexylresorcinol Coatings on Titanium Alloys for Dental Implants.
Kim SG, Hahn BD, Park DS, Lee YC, Choi EJ, Chae WS, Baek DH, Choi JY.
J Oral Maxillofac Surg. 2011 Aug 6. [Epub ahead of print]
PMID:
21821331
[PubMed - as supplied by publisher]
Progress in the Removal of Di-[2-Ethylhexyl]-Phthalate as Plasticizer in Blood Bags.
Simmchen J, Ventura R, Segura J.
Transfus Med Rev. 2011 Aug 4. [Epub ahead of print]
PMID:
21820855
[PubMed - as supplied by publisher]
Antibacterial effect of silver-platinum coating for orthodontic appliances.
Ryu HS, Bae IH, Lee KG, Hwang HS, Lee KH, Koh JT, Cho JH.
Angle Orthod. 2011 Aug 2. [Epub ahead of print]
PMID:
21810004
[PubMed - as supplied by publisher]
Influence of metal alloy and the profile of coronary stents in patients with multivessel coronary disease.
Abreu Filho LM, Forte AA, Sumita MK, Favarato D, Meireles GC.
Clinics (Sao Paulo). 2011;66(6):985-9.
PMID:
21808863
[PubMed - in process]
A combined arc-melting and tilt-casting furnace for the manufacture of high-purity bulk metallic glass materials.
Soinila E, Pihlajama¨ki T, Bossuyt S, Ha¨nninen H.
Rev Sci Instrum. 2011 Jul;82(7):073901.
PMID:
21806193
[PubMed - as supplied by publisher]
Waste-recycling Monte Carlo with optimal estimates: Application to free energy calculations in alloys.
Adjanor G, Athe`nes M, Rodgers JM.
J Chem Phys. 2011 Jul 28;135(4):044127.
PMID:
21806110
[PubMed - as supplied by publisher]
Role of electronic excitation in the amorphization of ge-sb-te alloys.
Li XB, Liu XQ, Liu X, Han D, Zhang Z, Han XD, Sun HB, Zhang SB.
Phys Rev Lett. 2011 Jul 1;107(1):015501. Epub 2011 Jun 29.
PMID:
21797549
[PubMed - in process]
Prediction of the operating point of dendrites growing under coupled thermosolutal control at high growth velocity.
Mullis AM.
Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Jun;83(6-1):061601. Epub 2011 Jun 2.
PMID:
21797374
[PubMed - as supplied by publisher]
Metal Anion-Alkyl Ammonium Complexes as Direct Write Precursors to Produce Nanopatterns of Metals, Nitrides, Oxides, Sulfides, And Alloys.
Radha B, Kiruthika S, Kulkarni GU.
J Am Chem Soc. 2011 Jul 26. [Epub ahead of print]
PMID:
21790160
[PubMed - as supplied by publisher]
Characteristics of InGaN-based concentrator solar cells operating under 150X solar concentration.
Yang CC, Jang CH, Sheu JK, Lee ML, Tu SJ, Huang FW, Yeh YH, Lai WC.
Opt Express. 2011 Jul 4;19 Suppl 4:A695-700. doi: 10.1364/OE.19.00A695.
PMID:
21747536
[PubMed - in process]
Determination of the magnetic ground state in the martensite phase of Ni-Mn-Z (Z = In, Sn and Sb) off-stoichiometric Heusler alloys by nonlinear AC susceptibility.
Umetsu RY, Fujita A, Ito W, Kanomata T, Kainuma R.
J Phys Condens Matter. 2011 Aug 17;23(32):326001. Epub 2011 Jul 25.
PMID:
21785185
[PubMed - in process]
Effects of phase constitution on magnetic susceptibility and mechanical properties of Zr-rich Zr-Mo alloys.
Suyalatu, Kondo R, Tsutsumi Y, Doi H, Nomura N, Hanawa T.
Acta Biomater. 2011 Jul 19. [Epub ahead of print]
PMID:
21784180
[PubMed - as supplied by publisher]
Bioactive glass microspheres as osteopromotive inlays in macrotextured surfaces of Ti and CoCr alloy bone implants: Trapezoidal surface grooves without inlay most efficient in resisting torsional forces.
Keränen P, Moritz N, Alm JJ, Ylänen H, Kommonen B, Aro HT.
J Mech Behav Biomed Mater. 2011 Oct;4(7):1483-91. Epub 2011 May 30.
PMID:
21783158
[PubMed - in process]
Effect of the combination of dithiooctanoate monomers and acidic adhesive monomers on adhesion to precious metals, precious metal alloys and non-precious metal alloys.
Ikemura K, Kojima K, Endo T, Kadoma Y.
Dent Mater J. 2011 Jul 28;30(4):469-77. Epub 2011 Jul 21.
PMID:
21778614
[PubMed - in process]
Nanoporous PtAg and PtCu alloys with hollow ligaments for enhanced electrocatalysis and glucose biosensing.
Xu C, Liu Y, Su F, Liu A, Qiu H.
Biosens Bioelectron. 2011 Sep 15;27(1):160-6. Epub 2011 Jul 7.
PMID:
21778046
[PubMed - in process]
Pt/Cr and Pt/Ni catalysts for oxygen reduction reaction: to alloy or not to alloy?
Escaño MC, Gyenge E, Nakanishi H, Kasai H.
J Nanosci Nanotechnol. 2011 Apr;11(4):2944-51.
PMID:
21776658
[PubMed - in process]
In vitro evaluation of the electrochemical behaviour of stainless steel and Ni-Ti orthodontic archwires at different temperatures.
Pakshir M, Bagheri T, Kazemi MR.
Eur J Orthod. 2011 Jul 19. [Epub ahead of print]
PMID:
21771804
[PubMed - as supplied by publisher]
Multifrequency atomic force microscopy: compositional imaging with electrostatic force measurements.
Magonov S, Alexander J.
Microsc Microanal. 2011 Aug;17(4):587-97. Epub 2011 Jul 19.
PMID:
21771386
[PubMed - in process]
Magnetic resonance imaging evaluation of intervertebral test spacers: an experimental comparison of magnesium versus titanium and carbon fiber reinforced polymers as biomaterials.
Ernstberger T, Buchhorn G, Heidrich G.
Ir J Med Sci. 2009 Aug 20. [Epub ahead of print]
PMID: 19693644 [PubMed - as supplied by publisher]
Ultrasonic irradiation and its application for improving the corrosion resistance of phosphate coatings on aluminum alloys.
Sheng M, Wang C, Zhong Q, Wei Y, Wang Y.
Ultrason Sonochem. 2010 Jan;17(1):21-5. Epub 2009 Aug 6.
PMID: 19692286 [PubMed - in process]
Plasma reduction of bronze corrosion developed under long-term artificial ageing.
Novakovic J, Papadopoulou O, Vassiliou P, Filippaki E, Bassiakos Y.
Anal Bioanal Chem. 2009 Aug 15. [Epub ahead of print]
PMID: 19685234 [PubMed - as supplied by publisher]
First-principles studies on alloying and simplified thermodynamic aqueous chemical stability of calcium-, zinc-, aluminum-, yttrium- and iron-doped magnesium alloys.
Velikokhatnyi OI, Kumta PN.
Acta Biomater. 2009 Aug 14. [Epub ahead of print]
PMID: 19683600 [PubMed - as supplied by publisher]
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