American Elements' AE Bullion™ group mints certified high purity Rhodium Bars from laboratory certified engineered materials with properties applicable to chemical vapor deposition (CVP) for thin film and laboratory standard impurity levels for short and long term physical possession and to allow for exposure and controlled risk to industrial demand fluctuations reflected in the global rhodium price. Bars are manufactured and minted under written SOPs (standard operating procedures) to assure quality and consistency by American Elements' AE Metals™ custom synthesis and refining group. Besides rhodium bars, rhodium coins and rhodium ingots may be purchased by funds, currency reserves, exchange-traded funds (ETFs), private investors, collectors and hobbyists to take direct physical title and possession of the metal with risk exposure from shortages or chemical/physical technology changes, such as in solar energy, and fuel cell developments, equivalent to movements in the industrial application price of Rhodium. American Elements offers bonded short and long term warehouse inventory services for AE Bullion™ coins to investors, funds and collectors who do not wish to take physical custody of the metal or lack secure storage or warehouse capabilities. The lowest possible bar unit price to Rhodium melt value ratio is maintained through state of the art mint and die systems and analytically certified blanks (planchet or flan) refined and pressed to exacting purity and weight. We also produce Rhodium as rod, pellets, powder, pieces, disc, granules, and wire, as nanoparticles and in compound forms, such as oxide. Rhodium Bars may be purchased in bulk or small quantity. Portfolios of different elemental metal bars or coins may also be structured and purchased from the AE Bullion™ group allowing for strategic risk allocation and indexing across a basket of metals.
Rhodium is a Block D, Group 9, Period 5 element. The electronic configuration is [Kr] 4d8 5s1. In its elemental form rhodium's CAS number is 7440-16-6. The rhodium atom has a radius of 134.5.pm and it's Van der Waals radius is 200.pm. Rhodium is a member of the platinum group of metals. It has a higher melting point than platinum, but a lower density.
It is alloyed with platinum and palladium in electrodes for spark plugs, advanced laboratory equipment and in thermocouples. Rhodium compounds also have catalytic uses in automotive catalytic converters. Rhodium is used as a plating metal in jewelry production to enhance the whiteness of white gold. Rhodium 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.
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Periodic table of the elements science and academic information, elements and advanced materials data, scientific presentations and all pages, designs, concepts, logos, and color schemes herein are the copyrighted proprietary rights and intellectual property of American Elements. American Elements is a U.S. Registered Trademark. © 2001-2009. American Elements. All rights reserved. |
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Recent Research & Development for Rhodium
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Preparation of Rhodium Nanoparticles in Carbon Dioxide Induced Ionic Liquids and their Application to Selective Hydrogenation.
Cimpeanu V, Kocevar M, Parvulescu VI, Leitner W.
Angew Chem Int Ed Engl. 2008 Dec 30. [Epub ahead of print] No abstract available.
PMID: 19116999 [PubMed - as supplied by publisher]
- Stereoselective Hydrogenation of Olefins Using Rhodium-Substituted Carbonic Anhydrase-A New Reductase.
Jing Q, Okrasa K, Kazlauskas RJ.
Chemistry. 2008 Dec 29. [Epub ahead of print]
PMID: 19115310 [PubMed - as supplied by publisher]
- Chelation-Assisted Carbon-Halogen Bond Activation by a Rhodium(I) Complex.
Chen S, Li Y, Zhao J, Li X.
Inorg Chem. 2008 Dec 23. [Epub ahead of print]
PMID: 19105736 [PubMed - as supplied by publisher]
- Catalytic Carbon-Carbon sigma Bond Activation: An Intramolecular Carbo-Acylation Reaction with Acylquinolines.
Dreis AM, Douglas CJ.
J Am Chem Soc. 2008 Dec 23. [Epub ahead of print]
PMID: 19105696 [PubMed - as supplied by publisher]
- Cytotoxic Rhodium(III) and Iridium(III) Polypyridyl Complexes: Structure-Activity Relationships, Antileukemic Activity, and Apoptosis Induction.
Dobroschke M, Geldmacher Y, Ott I, Harlos M, Kater L, Wagner L, Gust R, Sheldrick WS, Prokop A.
ChemMedChem. 2008 Dec 19. [Epub ahead of print]
PMID: 19101960 [PubMed - as supplied by publisher]
- Transition-Metal-Catalyzed Enantioselective [2+2+2] Cycloadditions for the Synthesis of Axially Chiral Biaryls.
Tanaka K.
Chem Asian J. 2008 Dec 19. [Epub ahead of print]
PMID: 19101940 [PubMed - as supplied by publisher]
- Dendrimer-rhodium nanoparticle modified glassy carbon electrode for amperometric detection of hydrogen peroxide.
Chandra S, Lokesh KS, Nicolai A, Lang H.
Anal Chim Acta. 2009 Jan 19;632(1):63-8. Epub 2008 Nov 5.
PMID: 19100883 [PubMed - in process]
- Rhodium-Catalyzed Direct Oxidative Carbonylation of Aromatic C-H Bond with CO and Alcohols.
Guan ZH, Ren ZH, Spinella SM, Yu S, Liang YM, Zhang X.
J Am Chem Soc. 2008 Dec 19. [Epub ahead of print]
PMID: 19099479 [PubMed - as supplied by publisher]
- Alkyl dehydrogenation in a Rh(i) complex via an isolated agostic intermediate.
Chaplin AB, Poblador-Bahamonde AI, Sparkes HA, Howard JA, Macgregor SA, Weller AS.
Chem Commun (Camb). 2009 Jan 14;(2):244-6. Epub 2008 Nov 19.
PMID: 19099083 [PubMed - in process]
- Towards [Cp( *)Rh(bpy)(H(2)O)](2+)-promoted P450 catalysis: Direct regeneration of CytC.
Hollmann F, Schmid A.
J Inorg Biochem. 2008 Nov 20. [Epub ahead of print]
PMID: 19087893 [PubMed - as supplied by publisher]
- Elevated metallothionein-bound cadmium concentrations in urine from bladder carcinoma patients, investigated by size exclusion chromatography-inductively coupled plasma mass spectrometry.
Wolf C, Strenziok R, Kyriakopoulos A.
Anal Chim Acta. 2009 Jan 12;631(2):218-22. Epub 2008 Nov 1.
PMID: 19084629 [PubMed - in process]
- Diastereoisomeric bisphosphite ligands in the hydroformylation of octenes: rhodium catalysis and HP-NMR investigations.
Selent D, Baumann W, Wiese KD, Börner A.
Chem Commun (Camb). 2008 Dec 14;(46):6203-5. Epub 2008 Oct 31.
PMID: 19082120 [PubMed - in process]
- Flexible scorpionates for transfer hydrogenation: the first example of their catalytic application.
Tsoureas N, Owen GR, Hamilton A, Orpen AG.
Dalton Trans. 2008 Nov 21;(43):6039-44. Epub 2008 Sep 23.
PMID: 19082061 [PubMed - in process]
- Diazaphospholidine terminated polyhedral oligomeric silsesquioxanes in the hydroformylation of vinyl acetate.
Vautravers NR, Cole-Hamilton DJ.
Chem Commun (Camb). 2009 Jan 7;(1):92-4. Epub 2008 Nov 21.
PMID: 19082009 [PubMed - in process]
- Stereoelectronic effects in a homologous series of bidentate cyclic phosphines. A clear correlation of hydroformylation catalyst activity with ring size.
Haddow MF, Middleton AJ, Orpen AG, Pringle PG, Papp R.
Dalton Trans. 2009 Jan 7;(1):202-9. Epub 2008 Nov 25.
PMID: 19081990 [PubMed - in process]
- A further discussion of the factors controlling the distribution of Pt, Pd, Rh and Au in road dust, gullies, road sweeper and gully flusher sediment in the city of Sheffield, UK.
Prichard HM, Sampson J, Jackson M.
Sci Total Environ. 2008 Dec 9. [Epub ahead of print]
PMID: 19081605 [PubMed - as supplied by publisher]
- Quality assurance of PASADENA hyperpolarization for (13)C biomolecules.
Hövener JB, Chekmenev EY, Harris KC, Perman WH, Tran TT, Ross BD, Bhattacharya P.
MAGMA. 2008 Dec 6. [Epub ahead of print]
PMID: 19067009 [PubMed - as supplied by publisher]
- Single and Double C--Cl-Activation of Methylene Chloride by P,N-ligand Coordinated Rhodium Complexes.
Blank B, Glatz G, Kempe R.
Chem Asian J. 2008 Dec 8. [Epub ahead of print]
PMID: 19065598 [PubMed - as supplied by publisher]
- Practical Method for Asymmetric Addition of Arylboronic Acids to alpha,beta-Unsaturated Carbonyl Compounds Utilizing an In Situ Prepared Rhodium Catalyst.
Lukin K, Zhang Q, Leanna MR.
J Org Chem. 2008 Dec 5. [Epub ahead of print]
PMID: 19061408 [PubMed - as supplied by publisher]
- Selectivity control in enantioselective four-component reactions of aryl diazoacetates with alcohols, aldehydes and amines: an efficient approach to synthesizing chiral beta-amino-alpha-hydroxyesters.
Xu X, Zhou J, Yang L, Hu W.
Chem Commun (Camb). 2008 Dec 28;(48):6564-6. Epub 2008 Nov 11.
PMID: 19057780 [PubMed - in process]
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