Potassium Hexachlororhenate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered.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 Pharmacopoeia/British Pharmacopoeia)and follows applicable ASTM testing standards.Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.
Potassium is a Block S, Group 1, Period 4 element. The number of electrons in each of Potassium's shells is 2, 8, 8, 1 and its electronic configuration is [Ar] 4s1. In its elemental form potassium's CAS number is 7440-09-7. The potassium atom has a radius of 227.2 .pm and it's Van der Waals radius is 275.pm. Potassium is not toxic. Potassium is the seventh most abundant element on earth. In its metallic form it is one of the most reactive and electropositive of all metals and rapidly oxidizes. As with other metals of the alkali group, the metal decomposes in water with the evolution of hydrogen. It catches fire spontaneously in water. In high purity, potassium compounds have numerous pharmacological, medical, and electronics applications. Important compounds include the hydroxide, nitrate, carbonate, chloride, bromide, iodide, and sulfate. Lower purity compounds are used in pyrotechnics for its violet color on ignition and in glass and ceramic glazes to produce this color. Potassium also used as a nutrient in plant growth. Potassium was first discovered by Sir Humphrey Davy in 1807. The origin of the element name comes from the English word 'potash' meaning pot ashes and the Arabic word 'qali' which means alkali. The symbol K originates from the Latin word 'kalium'. See Potassium research below.
Rhenium is a Block D, Group 7, Period 6 element. The number of electrons in each of Rhodium's shells is 2, 8, 18, 32, 13, 2 and its electronic configuration is [Xe] 4f14 5d5 6s2. In its elemental form rhenium's CAS number is 7440-15-5. The rhenium atom has a radius of 137.1.pm and it's Van der Waals radius is 200.pm. The toxicity of Rhenium has not yet been established . Rhenium is the fourth densestelementexceeded only by that of platinum, iridium, and osmium . It has the second highest melting point exceeded only by tungsten and carbon . Rhenium 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. Because of this, thermocouples made of Tungsten/Rhenium alloy is are used when temperatures will rise to 2000 C and rhenium wire is used in photoflash lamps for photography. It is widely used as filaments for mass spectrographs and ion gauges. Rhenium was first discovered by Walter Noddack in 1925 in the Rhine region of Germany. The name Rhenium originates from the Latin word 'Rhenus' meaning "Rhine" after the place of discovery. See Rhenium research below.
Aluminum potassium sulfate and tannic Acid injection for hemorrhoids.
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Novel rhenium nitrides.
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Effect of rhenium on the dislocation core structure in tungsten.
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Highly Emitting Concomitant Polymorphic Crystals of a Dinuclear Rhenium Complex.
Quartapelle Procopio E, Mauro M, Panigati M, Donghi D, Mercandelli P, Sironi A, D'Alfonso G, De Cola L.
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Pyridyl-Cyclopentadiene Re(CO)(2) Complexes as a Compact Core Systems for SPECT Ligand Development.
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Postlumpectomy Focal Brachytherapy for Simultaneous Treatment of Surgical Cavity and Draining Lymph Nodes.
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Radioimmunotherapy with antibody to HPV16 E6 oncoprotein is effective in experimental cervical tumor expressing low levels of E6.
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Correction to Synthesis and Characterization of Luminescent Rhenium(I) Tricarbonyl Diimine Complexes with a Triarylboron Moiety and the Study of Their Fluoride Ion-Binding Properties.
Lam ST, Zhu N, Yam VW.
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86Y-CHX-A"-Rhenium-cyclized-[Cys3,4,10,D-Phe7,Arg11]a-MSH3-13 .
Leung K.
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68Ga-CHX-A"-Rhenium-cyclized-[Cys3,4,10,D-Phe7,Arg11]a-MSH3-13 .
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Therapeutic nuclear medicine in pediatric malignancy.
Schmidt M, Baum RP, Simon T, Howman-Giles R.
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Rhenium(i) and platinum(ii) complexes with diimine ligands bearing acidic phenol substituents: hydrogen-bonding, acid-base chemistry and optical properties.
Liu W, Heinze K.
Dalton Trans. 2010 Oct 28;39(40):9554-64. Epub 2010 Aug 31.PMID: 20820607 [PubMed - in process]Related citations
Chemical Synthesis of Fully Biomass-Based Poly(butylene succinate) from Inedible-Biomass-Based Furfural and Evaluation of Its Biomass Carbon Ratio.
Tachibana Y, Masuda T, Funabashi M, Kunioka M.
Biomacromolecules. 2010 Sep 3. [Epub ahead of print]PMID: 20815381 [PubMed - as supplied by publisher]Related citations
Rhenium-catalyzed diastereoselective synthesis of aminoindanes via the insertion of allenes into a C-H bond.
Kuninobu Y, Yu P, Takai K.
Org Lett. 2010 Oct 1;12(19):4274-6.PMID: 20804169 [PubMed - in process]Related citations
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Zadrozny JM, Freedman DE, Jenkins DM, Harris TD, Iavarone AT, Mathonière C, Clérac R, Long JR.
Inorg Chem. 2010 Oct 4;49(19):8886-96.PMID: 20804139 [PubMed - in process]Related citations
Molecules containing rare-earth atoms solely bonded by transition metals.
Butovskii MV, Döring C, Bezugly V, Wagner FR, Grin Y, Kempe R.
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Toganoh M, Hihara T, Furuta H.
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Lobo-Lapidus RJ, Gates BC.
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Armstrong AF, Valliant JF.
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Zobi F, Degonda A, Schaub MC, Bogdanova AY.
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