Potassium Hexabromoiridate(IV) 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.
Iridium is a Block D, Group 9, Period 6 element. The number of electrons in each of Iridium's shells is 2, 8, 18, 32, 15, 2 and its electronic configuration is [Xe] 4f14 5d7 6s2. In its elemental form iridium's CAS number is 7439-88-5. The iridium atom has a radius of 135.7.pm and it's Van der Waals radius is 200.pm. Iridium is only slightly toxic. Iridium is a member of the platinum group of metals. It is the most corrosion resistant metal known. It will not react with any acid and can only be attacked by certain molten salts, such as molten sodium chloride. It is alloyed with platinum to produce highly corrosive resistant electrical contacts for spark plugs. Iridium 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. Iridium information, including Technical Data, Safety Data and its high purityproperties, research, applications and other useful facts are discussed here. Iridium was first discovered by Smithson Tennant in 1804. See Iridium 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.
Kv7 Channels Can Function without Constitutive Calmodulin Tethering.
Gómez-Posada JC, Aivar P, Alberdi A, Alaimo A, Etxeberría A, Fernández-Orth J, Zamalloa T, Roura-Ferrer M, Villace P, Areso P, Casis O, Villarroel A.
PLoS One. 2011;6(9):e25508. Epub 2011 Sep 28.
PMID:
21980481
[PubMed - in process]
Hydrogen Sulfide as Endothelium-Derived Hyperpolarizing Factor Sulfhydrates Potassium Channels.
Mustafa AK, Sikka G, Gazi SK, Steppan J, Jung SM, Bhunia AK, Barodka VM, Gazi FK, Barrow RK, Wang R, Amzel LM, Berkowitz DE, Snyder SH.
Circ Res. 2011 Oct 6. [Epub ahead of print]
PMID:
21980127
[PubMed - as supplied by publisher]
Effects of pH on Potassium: New Explanations for Old Observations.
Aronson PS, Giebisch G.
J Am Soc Nephrol. 2011 Oct 6. [Epub ahead of print]
PMID:
21980112
[PubMed - as supplied by publisher]
Factors which determine the duration of follower potentials in longitudinal smooth muscle isolated from the guinea-pig stomach antrum.
Shigemasa Y, Kito Y, Hashitani H, Suzuki H.
J Smooth Muscle Res. 2011;47(3-4):89-110.
PMID:
21979408
[PubMed - in process]
Cloning and Characterization of Catalases from Rice, Oryza sativa L.
Wutipraditkul N, Boonkomrat S, Buaboocha T.
Biosci Biotechnol Biochem. 2011 Oct 7. [Epub ahead of print]
PMID:
21979082
[PubMed - as supplied by publisher]
Synthesis and preliminary evaluation of amiloride analogs as inhibitors of the urokinase-type plasminogen activator (uPA).
Matthews H, Ranson M, Tyndall JD, Kelso MJ.
Bioorg Med Chem Lett. 2011 Sep 18. [Epub ahead of print]
PMID:
21978672
[PubMed - as supplied by publisher]
Metabolic changes during a field experiment in a world-class windsurfing athlete: a trial with multivariate analyses.
Resende NM, de Magalhães Neto AM, Bachini F, de Castro LE, Bassini A, Cameron LC.
OMICS. 2011 Oct;15(10):695-704.
PMID:
21978397
[PubMed - in process]
Effects of elevated seawater pCO2 on gene expression patterns in the gills of the green crab, Carcinus maenas.
Fehsenfeld S, Kiko R, Appelhans Y, Towle DW, Zimmer M, Melzner F.
BMC Genomics. 2011 Oct 6;12(1):488. [Epub ahead of print]
PMID:
21978240
[PubMed - as supplied by publisher]
Partial ABCC8 gene deletion mutations causing diazoxide-unresponsive hyperinsulinaemic hypoglycaemia.
Flanagan S, Damhuis A, Banerjee I, Rokicki D, Jefferies C, Kapoor R, Hussain K, Ellard S.
Pediatr Diabetes. 2011 Oct 7. doi: 10.1111/j.1399-5448.2011.00821.x. [Epub ahead of print]
PMID:
21978130
[PubMed - as supplied by publisher]
Noise reduction in spectral CT: Reducing dose and breaking the trade-off between image noise and energy bin selection.
Leng S, Yu L, Wang J, Fletcher JG, Mistretta CA, McCollough CH.
Med Phys. 2011 Sep;38(9):4946.
PMID:
21978039
[PubMed - in process]
The prevalence of interdigital erythrasma in southern region of Turkey.
Inci M, Serarslan G, Ozer B, Inan MU, Evirgen O, Erkaslan Alagoz G, Duran N.
J Eur Acad Dermatol Venereol. 2011 Oct 7. doi: 10.1111/j.1468-3083.2011.04293.x. [Epub ahead of print]
PMID:
21977942
[PubMed - as supplied by publisher]
The roles of the cation transporters CHX21 and CHX23 in the development of Arabidopsis thaliana.
Evans AR, Hall D, Pritchard J, Newbury HJ.
J Exp Bot. 2011 Oct 5. [Epub ahead of print]
PMID:
21976771
[PubMed - as supplied by publisher]
Hypercalciuria Associated with High Dietary Protein Intake Is Not Due to Acid Load.
Maalouf NM, Moe OW, Adams-Huet B, Sakhaee K.
J Clin Endocrinol Metab. 2011 Oct 5. [Epub ahead of print]
PMID:
21976719
[PubMed - as supplied by publisher]
Mutation of the gastric hydrogen-potassium ATPase alpha subunit causes iron-deficiency anemia in mice.
Krieg L, Milstein O, Krebs P, Xia Y, Beutler B, Du X.
Blood. 2011 Oct 5. [Epub ahead of print]
PMID:
21976678
[PubMed - as supplied by publisher]
Ion transporting proteins of human bronchial epithelium.
Toczylowska-Maminska R, Dolowy K.
J Cell Biochem. 2011 Oct 4. doi: 10.1002/jcb.23393. [Epub ahead of print]
PMID:
21975871
[PubMed - as supplied by publisher]
The effects of cannabidiolic acid and cannabidiol on contractility of the gastrointestinal tract of Suncus murinus.
Cluny NL, Naylor RJ, Whittle BA, Javid FA.
Arch Pharm Res. 2011 Sep;34(9):1509-17. Epub 2011 Oct 6.
PMID:
21975813
[PubMed - in process]
Nerve growth factor enhances the excitability of rat sensory neurons through activation of the atypical protein kinase C isoform, PKM{zeta}
Zhang Y, Kays J, Hodgdon KE, Sacktor TC, Nicol GD.
J Neurophysiol. 2011 Oct 5. [Epub ahead of print]
PMID:
21975456
[PubMed - as supplied by publisher]
Prognostic significance of biochemical markers in African Burkitt's lymphoma.
Arthur FK, Owusu L, Yeboah FA, Rettig T, Osei-Akoto A.
Clin Transl Oncol. 2011 Oct;13(10):731-6.
PMID:
21975335
[PubMed - in process]
Formulating a new basis for the treatment against botulinum neurotoxin intoxication: 3,4-Diaminopyridine prodrug design and characterization.
Zakhari JS, Kinoyama I, Hixon MS, Di Mola A, Globisch D, Janda KD.
Bioorg Med Chem. 2011 Sep 14. [Epub ahead of print]
PMID:
21975066
[PubMed - as supplied by publisher]
Shape-tailoring and catalytic function of anisotropic gold nanostructures.
Premkumar T, Lee K, Geckeler KE.
Nanoscale Res Lett. 2011 Oct 5;6(1):547. [Epub ahead of print]
PMID:
21974964
[PubMed - as supplied by publisher]
In-Water Dehydrative Alkylation of Ammonia and Amines with Alcohols by a Polymeric Bimetallic Catalyst.
Ohta H, Yuyama Y, Uozumi Y, Yamada YM.
Org Lett. 2011 Jun 29. [Epub ahead of print]
PMID:
21714487
[PubMed - as supplied by publisher]
Green chemiluminescence from a bis-cyclometalated iridium(iii) complex with an ancillary bathophenanthroline disulfonate ligand.
Zammit EM, Barnett NW, Henderson LC, Dyson GA, Zhou M, Francis PS.
Analyst. 2011 Jun 27. [Epub ahead of print]
PMID:
21709858
[PubMed - as supplied by publisher]
Evaluation of cuprimine® and syprine® for decorporation of radioisotopes of cesium, cobalt, iridium and strontium.
Levitskaia TG, Creim JA, Curry TL, Luders T, Peterson JM, Thrall KD, Levinson B.
Health Phys. 2011 Aug;101(2):118-27.
PMID:
21709497
[PubMed - in process]
The Role of Coordination Geometry in Dictating the Barrier to Hydride Migration in d6 Square Pyramidal Iridium and Rhodium Pincer Complexes.
Findlater M, Cartwright-Sykes A, White PS, Schauer CK, Brookhart MS.
J Am Chem Soc. 2011 Jun 24. [Epub ahead of print]
PMID:
21702471
[PubMed - as supplied by publisher]
Net oxidative addition of C(sp3)-F bonds to iridium via initial C-H bond activation.
Choi J, Wang DY, Kundu S, Choliy Y, Emge TJ, Krogh-Jespersen K, Goldman AS.
Science. 2011 Jun 24;332(6037):1545-8.
PMID:
21700870
[PubMed - in process]
Catching the First Oligomerization Event in the Catalytic Formation of Polyaminoboranes: H(3)B·NMeHBH(2)·NMeH(2) Bound to Iridium.
Johnson HC, Robertson AP, Chaplin AB, Sewell LJ, Thompson AL, Haddow MF, Manners I, Weller AS.
J Am Chem Soc. 2011 Jul 1. [Epub ahead of print]
PMID:
21699193
[PubMed - as supplied by publisher]
Ir-catalysed formation of C-F bonds. From allylic alcohols to a-fluoroketones.
Ahlsten N, Martín-Matute B.
Chem Commun (Camb). 2011 Jun 22. [Epub ahead of print]
PMID:
21695314
[PubMed - as supplied by publisher]
Rhodium and iridium complexes of an asymmetric bicyclic NHC bearing secondary pyridyl donors.
Newman PD, Cavell KJ, Hallett AJ, Kariuki BM.
Dalton Trans. 2011 Jun 20. [Epub ahead of print]
PMID:
21687899
[PubMed - as supplied by publisher]
Atomic layer-deposited tunnel oxide stabilizes silicon photoanodes for water oxidation.
Chen YW, Prange JD, Dühnen S, Park Y, Gunji M, Chidsey CE, McIntyre PC.
Nat Mater. 2011 Jun 19;10(7):539-44. doi: 10.1038/nmat3047.
PMID:
21685904
[PubMed - in process]
A Nonemissive Iridium(III) Complex That Specifically Lights-Up the Nuclei of Living Cells.
Li C, Yu M, Sun Y, Wu Y, Huang C, Li F.
J Am Chem Soc. 2011 Jul 1. [Epub ahead of print]
PMID:
21682270
[PubMed - as supplied by publisher]
Synthesis, Structure, and Reactivity of Hydridoiridium Complexes Bearing a Pincer-Type PSiP Ligand.
Fang H, Choe YK, Li Y, Shimada S.
Chem Asian J. 2011 Jun 15. doi: 10.1002/asia.201100085. [Epub ahead of print]
PMID:
21678557
[PubMed - as supplied by publisher]
Anodic Deposition of Colloidal Iridium Oxide Thin Films from Hexahydroxyiridate(IV) Solutions.
Zhao Y, Vargas-Barbosa NM, Hernandez-Pagan EA, Mallouk TE.
Small. 2011 Jun 16. doi: 10.1002/smll.201100485. [Epub ahead of print]
PMID:
21678551
[PubMed - as supplied by publisher]
Distinguishing Homogeneous from Heterogeneous Catalysis in Electrode-Driven Water Oxidation with Molecular Iridium Complexes.
Schley ND, Blakemore JD, Subbaiyan NK, Incarvito CD, D'Souza F, Crabtree RH, Brudvig GW.
J Am Chem Soc. 2011 Jun 15. [Epub ahead of print]
PMID:
21671679
[PubMed - as supplied by publisher]
Fine tuning of emission color of iridium(iii) complexes from yellow to red via substituent effect on 2-phenylbenzothiazole ligands: synthesis, photophysical, electrochemical and DFT study.
Li M, Zeng H, Meng Y, Sun H, Liu S, Lu Z, Huang Y, Pu X.
Dalton Trans. 2011 Jul 21;40(27):7153-64. Epub 2011 Jun 10.
PMID:
21666891
[PubMed - in process]
A 50-Year Record of Platinum, Iridium, and Rhodium in Antarctic Snow: Volcanic and Anthropogenic Sources.
Soyol-Erdene TO, Huh Y, Hong S, Hur SD.
Environ Sci Technol. 2011 Jun 21. [Epub ahead of print]
PMID:
21662990
[PubMed - as supplied by publisher]
Iridium-catalysed condensation of alcohols and amines as a method for aminosugar synthesis.
Cumpstey I, Agrawal S, Borbas KE, Martín-Matute B.
Chem Commun (Camb). 2011 Jul 21;47(27):7827-9. Epub 2011 Jun 8.
PMID:
21655585
[PubMed - in process]
Catalytic-adsorptive stripping voltammetric determination of ultra-trace iridium(III). Application to fresh- and sea-water.
Locatelli C.
Talanta. 2011 Jul 15;85(1):546-50. Epub 2011 Apr 16.
PMID:
21645739
[PubMed - in process]
Synthesis and hydroamination catalysis with 3-aryl substituted pyrrolyl and dipyrrolylmethane titanium(iv) complexes.
Swartz Ii DL, Staples RJ, Odom AL.
Dalton Trans. 2011 Jun 6. [Epub ahead of print]
PMID:
21643608
[PubMed - as supplied by publisher]
Flow injection analysis combined with a hydrothermal flow reactor: Application to kinetic determination of trace amounts of iridium using a water-soluble porphyrin.
Kawamura K, Ikoma K, Igarashi S, Hisamoto H, Yao T.
Talanta. 2011 Jun 15;84(5):1318-22. Epub 2011 Mar 4.
PMID:
21641445
[PubMed - in process]
Iridium Complexes of the Doubly Cyclometalated NHC Ligand IMes''
Navarro J, Torres O, Marti´n M, Sola E.
J Am Chem Soc. 2011 Jun 29;133(25):9738-9740. Epub 2011 Jun 8.
PMID:
21639135
[PubMed - as supplied by publisher]
Potassium Hexabromoiridate(IV) 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.
Iridium is a Block D, Group 9, Period 6 element. The number of electrons in each of Iridium's shells is 2, 8, 18, 32, 15, 2 and its electronic configuration is [Xe] 4f14 5d7 6s2. In its elemental form iridium's CAS number is 7439-88-5. The iridium atom has a radius of 135.7.pm and it's Van der Waals radius is 200.pm. Iridium is only slightly toxic. Iridium is a member of the platinum group of metals. It is the most corrosion resistant metal known. It will not react 
with any acid and can only be attacked by certain molten salts, such as molten sodium chloride. It is alloyed with platinum to produce highly corrosive resistant electrical 
contacts for spark plugs. Iridium 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. Iridium information, including Technical Data, Safety Data and its high purity properties, research, applications and other useful facts are discussed here. Iridium was first discovered by Smithson Tennant in 1804. See Iridium research below.
