American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopeia/British Pharmacopeia) and follows applicable ASTM testing standards.See safety data and research below and pricing/lead time above. American Elements specializes in producing high purity Chromium Vanadium Sputtering Targets with the highest possible density and smallest possible average grain sizes for use in semiconductor, chemical vapor deposition (CVD) and physical vapor deposition (PVD) display and optical applications. Our standard Sputtering Targets for thin film are available monoblock or bonded with dimensions and configurations up to 820 mm with hole drill locations and threading, beveling, grooves and backing designed to work with both older sputtering devises as well as the latest process equipment, such as large area coating for solar energy or fuel cells and flip-chip applications. Research sized targets are also produced as well as custom sizes and alloys. All targets are analyzed using best demonstrated techniques including X-Ray Fluorescence (XRF), Glow Discharge Mass Spectrometry (GDMS), and Inductively Coupled Plasma (ICP). "Sputtering" allows for thin film deposition of an ultra high purity sputtering metallic or oxide material onto another solid substrate by the controlled removal and conversion of the target material into a directed gaseous/plasma phase through ionic bombardment. We can also provide targets outside this range in addition to just about any size rectangular, annular, or oval target. Materials are produced using crystallization, solid state and other ultra high purification processes such as sublimation. American Elements specializes in producing custom compositions for commercial and research applications and for new proprietary technologies. American Elements also casts any of the rare earth metals and most other advanced materials into rod, bar or plate form, as well as other machined shapes and through other processes such as nanoparticles (See also application discussion at Nanotechnology Information and at Quantum Dots) and in the form of solutions and organometallics. We also produce Chromium as rods, powder and plates. Other shapes are available by request.
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.
Vanadium is a Block D, Group 5, Period 4 element. The number of electrons in each of Vanadium's shells is 2, 8, 11, 2 and its electronic configuration is [Ar] 3d3 4s2. In its elemental form vanadium's CAS number is 7440-62-2. The vanadium atom has a radius of 131.1.pm and it's Van der Waals radius is 200.pm. Several vanadium compounds are toxic to some creatures despite the fact that it is an essential trace element. Vanadium is highly resistant to corrosion, so it is commonly used to alloy stainless steel grades. Vanadium compounds are used in advanced ceramics. Vanadium is a petrochemical cracking catalyst. Vanadium 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. Vanadium 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. Vanadium was first discovered in Mexico City by Andres Manuel del Rio, a Spanish born and European educated Mexican mineralogist, in 1801.
PACKAGING SPECIFICATIONS FOR BULK & RESEARCH QUANTITIES
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.
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]
Distorted cubic tetranuclear vanadium(iv) phosphonate cages: double-four-ring (D4R) containing transition metal ion phosphonate cages.
Chandrasekhar V, Dey A, Senapati T, Sañudo EC.
Dalton Trans. 2011 Nov 10. [Epub ahead of print]
PMID:
22071886
[PubMed - as supplied by publisher]
Bioavailability, tissue distribution and hypoglycaemic effect of vanadium in magnesium-deficient rats.
Sánchez C, Torres M, Bermúdez-Peña MC, Aranda P, Montes-Bayón M, Sanz-Medel A, Llopis J.
Magnes Res. 2011 Nov 9. [Epub ahead of print]
PMID:
22068015
[PubMed - as supplied by publisher]
An alternative path for the evolution of biological nitrogen fixation.
Boyd ES, Hamilton TL, Peters JW.
Front Microbiol. 2011;2:205. Epub 2011 Oct 5.
PMID:
22065963
[PubMed]
(4-Bromo-2-{[2-(morpholin-4-yl)ethyl-imino]-meth-yl}phenolato)dioxido-vanadium(V).
Wang CY, Wu X, Cao F, Yuan CJ.
Acta Crystallogr E Struct Rep Online. 2011 Oct 1;67(Pt 10):m1330. Epub 2011 Sep 14.
PMID:
22065600
[PubMed]
A new mixed group 5 metal selenide, Nb(1.41)V(0.59)Se(9).
Lee E, Yun H.
Acta Crystallogr E Struct Rep Online. 2011 Sep 1;67(Pt 9):i50. Epub 2011 Aug 27.
PMID:
22064790
[PubMed]
Catalytic dehydration of xylose to furfural: vanadyl pyrophosphate as source of active soluble species.
Sádaba I, Lima S, Valente AA, López Granados M.
Carbohydr Res. 2011 Oct 8. [Epub ahead of print]
PMID:
22055820
[PubMed - as supplied by publisher]
Chemical speciation of vanadium in particulate matter emitted from diesel vehicles and urban atmospheric aerosols.
Shafer MM, Toner B, Overdier J, Schauer JJ, Fakra SC, Herner J, Hu S, Ayala A.
Environ Sci Technol. 2011 Nov 3. [Epub ahead of print]
PMID:
22050708
[PubMed - as supplied by publisher]
Chemical Vapor Deposition Synthesis of Tunable Unsubstituted Polythiophene.
Nejati S, Lau KK.
Langmuir. 2011 Nov 2. [Epub ahead of print]
PMID:
22047472
[PubMed - as supplied by publisher]
VCl(3) catalyzed imine-based multicomponent reactions for the facile access of functionalized tetrahydropyridines and ß-amino carbonyls.
Pal S, Choudhury LH, Parvin T.
Mol Divers. 2011 Nov 1. [Epub ahead of print]
PMID:
22042610
[PubMed - as supplied by publisher]
Interplay between the structural and magnetic probes in the elucidation of the structure of a novel 2D layered [V(4)O(4)(OH)(2)(O(2)CC(6)H(4)CO(2))(4)]·DMF.
Djerdj I, Skapin SD, Ceh M, Jaglicic Z, Pajic D, Kozlevcar B, Orel B, Orel ZC.
Dalton Trans. 2011 Oct 31. [Epub ahead of print]
PMID:
22042096
[PubMed - as supplied by publisher]
Interdigitating Organic Bilayers Direct the Short Interlayer Spacing in Hybrid Organic-Inorganic Layered Vanadium Oxide Nanostructures.
Gannon GT, O'Dwyer CP, Larsson JA, Thompson D.
J Phys Chem B. 2011 Oct 31. [Epub ahead of print]
PMID:
22040010
[PubMed - as supplied by publisher]
Hepatic megalocytosis due to vanadium inhalation: participation of oxidative stress.
Cano-Gutiérrez G, Acevedo-Nava S, Santamaría A, Altamirano-Lozano M, Cano-Rodríguez MC, Fortoul TI.
Toxicol Ind Health. 2011 Oct 27. [Epub ahead of print]
PMID:
22033424
[PubMed - as supplied by publisher]
Recent perspectives into biochemistry of decavanadate.
Aureliano M, Fct, Algarve UO, Gambelas, Faro 8, Portugal.
World J Biol Chem. 2011 Oct 26;2(10):215-225.
PMID:
22031844
[PubMed - as supplied by publisher]
Association between plate location and plate removal following facial fracture repair.
Kubota Y, Kuroki T, Akita S, Koizumi T, Hasegawa M, Rikihisa N, Mitsukawa N, Satoh K.
J Plast Reconstr Aesthet Surg. 2011 Oct 24. [Epub ahead of print]
PMID:
22030077
[PubMed - as supplied by publisher]
Vanadium Oxide Nanotube Spherical Clusters Prepared on Carbon Fabrics for Energy Storage Applications.
Perera SD, Patel B, Bonso J, Grunewald M, Ferraris JP, Balkus KJ.
ACS Appl Mater Interfaces. 2011 Nov 4. [Epub ahead of print]
PMID:
22029527
[PubMed - as supplied by publisher]
Exchange Interactions Through p-p Stacking in the Lamellar Compound [{Cu(bipy)(en)}{Cu(bipy)(H(2)O)}{VO(3)}(4)](n).
Venegas-Yazigi D, Brown KA, Vega A, Calvo R, Aliaga C, Santana RC, Cardoso-Gil R, Kniep R, Schnelle W, Spodine E.
Inorg Chem. 2011 Oct 25. [Epub ahead of print]
PMID:
22026723
[PubMed - as supplied by publisher]
MCM-41 supported oxo-vanadium(IV) complex: A highly selective heterogeneous catalyst for bromination of hydroxy aromatic compounds in water.
Bhunia S, Saha D, Koner S.
Langmuir. 2011 Oct 25. [Epub ahead of print]
PMID:
22026477
[PubMed - as supplied by publisher]
Electronic Properties of Vanadium-Doped TiO(2).
Islam MM, Bredow T, Gerson A.
Chemphyschem. 2011 Oct 24. doi: 10.1002/cphc.201100557. [Epub ahead of print]
PMID:
22025455
[PubMed - as supplied by publisher]
Design and Redox Function of Conjugated Complexes with Polyanilines or Quinonediimines.
Moriuchi T, Hirao T.
Acc Chem Res. 2011 Oct 24. [Epub ahead of print]
PMID:
22023138
[PubMed - as supplied by publisher]
The Tetrahydrometalate Species VH2(H2), NbH4, and TaH4: Matrix Infrared Spectra and Quantum Chemical Calculations.
Wang X, Andrews L.
J Phys Chem A. 2011 Oct 24. [Epub ahead of print]
PMID:
22017260
[PubMed - as supplied by publisher]
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