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 Palladium Selenide 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. "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 nanoparticles. We also produce Palladium as disc, granules, ingot, pellets, pieces, powder, and rod. Other shapes are available by request.
Palladium is a Block D, Group 10, Period 5 element. The number of electrons in each of Palladium's shells is 2, 8, 18, 18 and its electronic configuration is [Kr] 4d10. In its elemental form palladium's CAS number is 7440-05-3. The palladium atom has a radius of 137.6.pm and it's Van der Waals radius is 163.pm. Palladium is a member of the platinum group of metals. It is an excellent hydrogenation and dehydrogenation catalyst and available in many Organo-metallic forms for this purpose. It is alloyed with gold, silver, iridium and other platinum group elements and used in jewelry. The metal is used in dentistry, watch making, and in making surgical instruments and electrical contacts. Platinum 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. Palladium was first discovered by William Hyde Wollaston in 1803. See Palladium research below.
Selenium is a Block P, Group 16, Period 4 element. The number of electrons in each of Selenium's shells is 2, 8, 18, 6 and its electronic configuration is [Ar] 3d10 4s2 4p4. In its elemental form selenium's CAS number is 7782-49-2. The selenium atom has a radius of 116.pm and it's Van der Waals radius is 190.pm. The EPA does not classify selenium as carcinogenic, although selenium sulfide is a probable carcinogen. Selenates and selenites which are compounds of selenium, are highly toxic. Hydrogen selenide gas (SeH2) is the most acutely toxic compound of selenium. Selenium exhibits both photovoltaic action, where light is converted directly into electricity, and photoconductive action, where the electrical resistance decreases with increased illumination. of photocells and exposure meters for photographic use, as well as solar cells. Below its melting point, selenium is a p-type semiconductor and has many uses in electronic and solid-state applications. Selenium is available as metal and compounds with purities from 99% to 99.9999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. Selenium was first discovered by Jons Berzelius in 1817. The origin of the name Selenium comes from the Greek word "Selênê" meaning moon. See selenium research below.
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.
Complexation and Extraction of PAHs to the Aqueous Phase with a Dinuclear
Pt(II) Diazapyrenium-Based Metallacycle. Blanco V, García MD, Terenzi A, Pía E, Fernández-Mato A, Peinador C, Quintela
JM. Chemistry. 2010 Oct 4. [Epub ahead of
print] PubMed PMID: 20922724.
Electrochemical absorption and
oxidation of hydrogen on palladium alloys with platinum, gold and rhodium. Lukaszewski M, Hubkowska K, Czerwinski A. Phys
Chem Chem Phys. 2010 Oct 4. [Epub ahead of print] PubMed PMID: 20890504.
Palladium sensitization in the
United States: dermatology and dentistry connection. Pigatto PD, Spadari F, Bombeccari G, Guzzi G. Dermatitis. 2010
Oct;21(5):297-8. PubMed PMID: 20920421.
Palladium-Catalyzed
[1,3]-O-to-C Rearrangement of Pyrans toward Functionalized Cyclohexanones. Brioche JC, Barker TA, Whatrup DJ, Barker MD, Harrity JP. Org
Lett. 2010 Oct 1. [Epub ahead of print] PubMed PMID: 20886864.
A General Strategy Toward
Aromatic 1,2-Ambiphilic Synthons: Palladium-Catalyzed ortho-Halogenation of
PyDipSi-Arenes. Dudnik AS, Chernyak N, Huang C, Gevorgyan V. Angew Chem Int Ed Engl. 2010 Sep 30. [Epub ahead of print] PubMed
PMID: 20886495.
Design, synthesis, and subtype selectivity of
3,6-disubstituted ß-carbolines at Bz/GABA(A)ergic receptors. SAR and studies
directed toward agents for treatment of alcohol abuse. Yin W, Majumder S, Clayton T, Petrou S, Vanlinn ML, Namjoshi OA, Ma C, Cromer
BA, Roth BL, Platt DM, Cook JM. Bioorg Med Chem. 2010 Sep
29. [Epub ahead of print] PubMed PMID: 20888240.
Synthesis of a Solid-Phase Amino
Imidazotriazine Library via Palladium Catalyzed Direct Arylation. Maechling S, Good J, Lindell SD. J Comb Chem.
2010 Sep 29. [Epub ahead of print] PubMed PMID: 20879771.
Preparation of a Catalytic Membrane Reactor with
Palladium Nanoparticles Supported by a Packed-Bed Silica Nanosupporter for
Gas-Phase Methanol Oxidation. Lee KJ, Min SH, Jang J. Small. 2010 Sep 29. [Epub ahead of print] PubMed
PMID: 20882558.
Mechanistically Driven Development of Iridium
Catalysts for Asymmetric Allylic Substitution. Hartwig JF, Stanley LM. Acc Chem Res. 2010 Sep 28. [Epub
ahead of print] PubMed PMID: 20873839.
On the Mechanism of
Palladium-Catalyzed Aromatic C-H Oxidation. Powers DC, Xiao DY, Geibel MA, Ritter T. J Am Chem Soc. 2010 Sep 28. [Epub
ahead of print] PubMed PMID: 20873835.
Palladium-Catalyzed
Decarboxylative Couplings of 2-(2-Azaaryl)acetates with Aryl Halides and
Triflates. Shang R, Yang ZW, Wang Y, Zhang SL, Liu L. J Am Chem Soc. 2010 Sep 28. [Epub ahead of print] PubMed PMID:
20873805.
Efficient stochastic
thermostatting of path integral molecular dynamics. Ceriotti M, Parrinello M, Markland TE, Manolopoulos DE. J Chem Phys. 2010 Sep
28;133(12):124104. PubMed PMID: 20886921.
A Reductive-Coupling plus Nazarov Cyclization
Sequence in the Asymmetric Synthesis of Five-Membered Carbocycles. Kerr DJ, White JM, Flynn BL. J Org Chem.
2010 Sep 28. [Epub ahead of print] PubMed PMID: 20873806.
Incorporation of Pd into Au(111): enhanced
electrocatalytic activity for the hydrogen evolution reaction. Schäfer PJ, Kibler LA. Phys Chem Chem
Phys. 2010 Sep 28. [Epub ahead of print] PubMed PMID: 20877870.
Palladium-catalyzed
annulations of arynes with 2-(2-iodophenoxy)-1-substituted ethanones. Li RJ, Pi SF, Liang Y, Wang ZQ, Song RJ, Chen GX, Li JH. Chem Commun
(Camb). 2010 Sep 27. [Epub ahead of print] PubMed PMID: 20871908.
Umpolung Direct Arylation
Reactions: Facile Process Requiring Only Catalytic Palladium and
Substoichiometric Amount of Silver Salts. Mousseau JJ, Valle´e F, Lorion MM, Charette AB. J Am Chem Soc. 2010 Sep 27. [Epub ahead
of print] PubMed PMID: 20873750.
Hydrogen-Induced Reversible Insulator-Metal
Transition in a Palladium Nanosphere Sensor. Zou J, Iyer KS, Raston CL. Small. 2010 Sep 27. [Epub ahead of
print] PubMed PMID: 20878635.
Rapid Assembly of Resorcylic Acid Lactone
Frameworks through Sequential Palladium-Catalyzed Coupling Reactions. Fuse S, Sugiyama S, Takahashi T. Chem Asian
J. 2010 Sep 24. [Epub ahead of print] PubMed PMID: 20872399.
Evaluation of
thiouracil-based adhesive systems for bonding cast silver-palladium-copper-gold
alloy. Yamashita M, Koizumi H, Ishii T, Furuchi M, Matsumura H. J Oral Sci. 2010;52(3):405-10. PubMed PMID: 20881333.
Recent Research & Development for Selenium
Toenail selenium status and the risk of Barrett's esophagus: the Netherlands Cohort Study.
Steevens J, Schouten LJ, Driessen AL, Huysentruyt CJ, Keulemans YC, Goldbohm RA, van den Brandt PA.
Cancer Causes Control. 2010 Oct 10. [Epub ahead of print]PMID: 20936529 [PubMed - as supplied by publisher]Related citations
Promotion of Growth in Mungbean (Phaseolus aureus Roxb.) by Selenium is Associated with Stimulation of Carbohydrate Metabolism.
Malik JA, Kumar S, Thakur P, Sharma S, Kaur N, Kaur R, Pathania D, Bhandhari K, Kaushal N, Singh K, Srivastava A, Nayyar H.
Biol Trace Elem Res. 2010 Oct 9. [Epub ahead of print]PMID: 20936436 [PubMed - as supplied by publisher]Related citations
Transition metal chemistry of cyclodiphosphanes containing phosphine and amide-phosphine functionalities: Formation of a stable dipalladium(II) complex containing a Pd-P s-bond.
Balakrishna MS, Venkateswaran R, Mague JT.
Dalton Trans. 2010 Oct 8. [Epub ahead of print]PMID: 20936211 [PubMed - as supplied by publisher]Related citations
Associations between blood metals and fecundity among women residing in New York State.
Bloom MS, Louis GM, Sundaram R, Kostyniak PJ, Jain J.
Reprod Toxicol. 2010 Oct 6. [Epub ahead of print]PMID: 20933593 [PubMed - as supplied by publisher]Related citations
The protective role of selenium in recalcitrant Acer saccharium L. seeds subjected to desiccation.
Pukacka S, Ratajczak E, Kalemba E.
J Plant Physiol. 2010 Oct 6. [Epub ahead of print]PMID: 20933296 [PubMed - as supplied by publisher]Related citations
Trace element concentrations in nesting flatback turtles (Natator depressus) from Curtis Island, Queensland, Australia.
Ikonomopoulou MP, Olszowy H, Limpus C, Francis R, Whittier J.
Mar Environ Res. 2010 Sep 25. [Epub ahead of print]PMID: 20933265 [PubMed - as supplied by publisher]Related citations
Correlation between serum selenium level and febrile seizures.
Mahyar A, Ayazi P, Fallahi M, Javadi A.
Pediatr Neurol. 2010 Nov;43(5):331-4.PMID: 20933176 [PubMed - in process]Related citations
Anti-Tumor Activity of Aloe vera Against DMBA/Croton Oil-Induced Skin Papillomagenesis in Swiss Albino Mice.
Saini M, Goyal PK, Chaudhary G.
J Environ Pathol Toxicol Oncol. 2010;29(2):127-35.PMID: 20932247 [PubMed - in process]Related citations
Aluminosilicate Relatives: Chalcogenoaluminogermanates Rb(3)(AlQ(2))(3)(GeQ(2))(7) (Q = S, Se).
Rothenberger A, Shafaei-Fallah M, Kanatzidis MG.
Inorg Chem. 2010 Oct 8. [Epub ahead of print]PMID: 20932019 [PubMed - as supplied by publisher]Related citations
A Nutrient Approach to Prostate Cancer Prevention: The Selenium and Vitamin E Cancer Prevention Trial (SELECT).
Dunn BK, Richmond ES, Minasian LM, Ryan AM, Ford LG.
Nutr Cancer. 2010 Oct;62(7):896-918.PMID: 20924966 [PubMed - in process]Related citations
Serum levels of selenium in patients with breast cancer before and after treatment of external beam radiotherapy.
Franca CA, Nogueira CR, Ramalho A, Carvalho AC, Vieira SL, Penna AB.
Ann Oncol. 2010 Oct 5. [Epub ahead of print]PMID: 20924074 [PubMed - as supplied by publisher]Related citations
Kenji Soda--researching enzymes with the spirit of an alpinist.
Yoshimura T, Mihara H, Ohshima T, Tanizawa K.
J Biochem. 2010 Oct;148(4):371-9.PMID: 20924059 [PubMed - in process]Related citations
Inhibitory effect of arsenic on aerobic gut flora in rat.
Choudhry ZK, Misbahuddin M, Hosain AK, Saleh AA.
Bangladesh Med Res Counc Bull. 2009 Dec;35(3):79-83.PMID: 20922909 [PubMed - in process]Related citations
[Endemic and biogeochemical features of the territory of Chuvash Republic]
[No authors listed]
Vestn Ross Akad Med Nauk. 2010;(8):40-6. Russian. PMID: 20922843 [PubMed - in process]Related citations
Interaction of uranyl with Se(IV) and Se(VI) in aqueous acid solutions by means of capillary electrophoresis.
Sladkov V.
Electrophoresis. 2010 Oct 4. [Epub ahead of print]PMID: 20922762 [PubMed - as supplied by publisher]Related citations
Ensemble Modeling Coupled with Six Element Concentrations in Human Blood for Cancer Diagnosis.
Chen H, Tan C, Wu T.
Biol Trace Elem Res. 2010 Oct 5. [Epub ahead of print]PMID: 20922500 [PubMed - as supplied by publisher]Related citations
Use of dietary vitamin E and selenium (Se) to increase the shelf life of modified atmosphere packaged light lamb meat.
Ripoll G, Joy M, Muñoz F.
Meat Sci. 2010 Sep 18. [Epub ahead of print]PMID: 20920835 [PubMed - as supplied by publisher]Related citations
Impacts of maternal selenium and nutritional level on growth, adiposity, and glucose tolerance in female offspring in sheep.
Vonnahme KA, Luther JS, Reynolds LP, Hammer CJ, Carlson DB, Redmer DA, Caton JS.
Domest Anim Endocrinol. 2010 Nov;39(4):240-8. Epub 2010 Jul 25.PMID: 20920781 [PubMed - in process]Related citations
Mutations disrupting selenocysteine formation cause progressive cerebello-cerebral atrophy.
Agamy O, Ben Zeev B, Lev D, Marcus B, Fine D, Su D, Narkis G, Ofir R, Hoffmann C, Leshinsky-Silver E, Flusser H, Sivan S, Söll D, Lerman-Sagie T, Birk OS.
Am J Hum Genet. 2010 Oct 8;87(4):538-44.PMID: 20920667 [PubMed - in process]Related citations
Developmental toxicity of selenium to Dolly Varden char (Salvelinus malma).
McDonald BG, Debruyn AM, Elphick JR, Davies M, Bustard D, Chapman PM.
Environ Toxicol Chem. 2010 Aug 3. [Epub ahead of print]PMID: 20891017 [PubMed - as supplied by publisher]Related citations
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