It is often used as the input phosphor of an X-ray image intensifier tube found in fluoroscopy equipment. Negative ions in the vapors of inorganic compounds, Francium oxide is an ionic compound with the formula Fr[math]_2[/math]O. errors or omissions in the Database. ; Price, W.C., Journal of Molecular Structure, 220 (1990) 79-93 79 Elsevier Science Publishers B.V., Amsterdam - Printed in The Netherlands GAS ELECTRON DIFFRACTION STUDY ON THE MOLECULAR STRUCTURE OF CESIUM IODIDE AT A HIGH TEMPERATURE USING A REFINED INTENSITY FORMULA H. MIKI*, S. KODERA and T. INO** Department of Physics, Faculty of … gJ - Faktor von TlF, CsF, CsCl, CsBr, CsI und Anistropie der magnetischen suszeptibilitat von TlF, CsF und CsCl, Note: Please consider using the Identification . of all reactions involving this species. The dissociation energies of gaseous alkali halides, Phys., 1973, 59, 3645. Davidovits, P.; Brodhead, D.C., ; Mandel, M., Click on the images below to view the cesium … Honerjager, R.; Tischer, R., A, 2010, 114, 42, 11244-11251, https://doi.org/10.1021/jp103173d It is an ionic compound and each potassium ion has a charge of +1, while each iodine ion has a charge of -1. Viswanathan, R.; Hilpert, K., by the U.S. Secretary of Commerce on behalf of the U.S.A. Honig, A.; Stitch, M.L. Uber kontinuierliche absorptionsspektra der gasformigen alkalihalogenide im ultraviolett, Submit Answer Retry Entire Group 9 more group attempts remaining Berichte der Bunsengesellschaft für physikalische Chemie, 2010, 88, 2, 125-131, https://doi.org/10.1002/bbpc.19840880210 IV. Product #. For example, sodium iodide, NaI, is composed of sodium ions, Na + (elemental sodium is a metal), and iodide ions, I-(elemental iodine is a nonmetal). [all data], Story and Hebert, 1976 Cesium-137 ions are readily distributed in the body, and especially in the muscle tissues. It will likely dissolve exothermically in water, giving a solution of FrOH, which is a strong base, and have similar chemical properties to oxides of smaller alkali metals. Formula. Source(s): formula cesium iodide: https://biturl.im/IxTft. Chem. For the same reasons, however, cesium-137 also finds its way into foodstuffs that have been prepared in contaminated areas. . Molecular Formula. Application: An important application of caesium iodide crystals, which are scintillators, is electromagnetic calorimetry in experimental particle physics. Gusarov, A.V. Solid cesium iodide has the same kind of crystal structure as Cscl which is pictured below: Cl DCs How many I ions are there per unit cell in solid cesium iodide? A general reaction search Thermochimica Acta, 1986, 108, 45-55, https://doi.org/10.1016/0040-6031(86)85076-6 This colourless deliquescent solid is a salt that is highly soluble in water. National Institute of Standards and you enter 062K1064. As they are ionically bonded together, potassium has an oxidation number of +1 and iodide is -1. to you upon submission of this form. Z. Naturforsch. Still have questions? Thallium doped caesium iodide (CsI:Tl) is grown in a columnar ‘needle-like’ structure which provides excellent resolution, through reduced scattering, as each column of CsI acts as a light pipe channeling the visible light to the CMOS / CCD sensor below. The molecular formula identifies each type of element by its chemical symbol and identifies the number of atoms of each element found in one discrete molecule of the substance. Phys., 1969, 50, 3503. Proc. Applications . Future versions of this site may rely on KI (potassium iodide) is a salt of stable (not radioactive) iodine that can help block radioactive iodine from being absorbed by the thyroid gland, thus protecting this gland from radiation injury. Identify the formula and name of the cation and anion. Schmidt-Ott, H.D., Determination of dissociation constants and heats of formation of simple molecules by flame photometry. In this short piece of article, learn about the calcium iodide formula along with its chemical structure, uses and properties. Go To: Top, Phase change data, Reaction thermochemistry data, References, Notes, Data compiled by: Klaus P. Huber and Gerhard H. Herzberg, Go To: Top, Phase change data, Reaction thermochemistry data, Constants of diatomic molecules, Notes, Viswanathan and Hilpert, 2010 been selected on the basis of sound scientific judgment. Cesium reacts with the halogens to form a fluoride, chloride, bromide, and iodide. Cesium metal oxidized rapidly when exposed to the air and can form the dangerous superoxide on its surface. Hoeft, J.; Tiemann, E.; Torring, T., Go To: Top, Reaction thermochemistry data, Constants of diatomic molecules, References, Notes. Rule 1. 05427ES–021 - enter the lot number 05427ES without the filling-code Z. [all data], Gusarov, Gorokhov, et al., 1979 Get your answers by asking now. MDL number MFCD00010962. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by 100. See the answer. Potassium Iodide Chemical Formula. Mikrowellenrotationsspektren der Molekeln CsF, CsCl, CsBr und CsI, Pankajavalli, R.; Mallika, C.; Sreedharan, O.M. CESIUM FLUORIDE. © 2021  Merck KGaA, Darmstadt, Germany and/or its affiliates. CESIUM IODIDE. PubChem Substance ID 24852141. [all data], Honerjager and Tischer, 1973 Other names: caesium iodide Permanent link for this species. 2Cs(s) + I2(s) → 2CsI(s) Cesium iodide. number 09019TO without the first two letters. 10/15/2016 ALEKS; 2/2 iodine normally forms anions. on behalf of the United States of America. As a medication it is used to treat hyperthyroidism, in radiation emergencies, and to protect the thyroid gland when certain types of radiopharmaceuticals are used. Cesium monofluoride. II. The biological half-life is 110 days. Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others. Spectra of the alkali halides. Vaporisation thermodynamics of caesium iodide and caesium chromate, The unit cell may be depicted as shown. Faraday Soc., 1961, 57, 921. V. Cesium halides; chemical shift of autoionization, NACRES NA.23 Copyright for NIST Standard Reference Data is governed by If caesium is burned in air, the result is mainly formation of orange caesium superoxide, CsO 2.The resulting CsO 2 can be converted into Cs 2 O by the careful reaction of CsO 2 with caesium metal under nitrogen.. Cs(s) + O 2 (g) → CsO 2 (s). Laboratory Chemical Safety Summary (LCSS) Datasheet. 99.9% High Purity Cesium Iodide . A binary ionic compound is composed of ions of two different elements - one of which is a metal, and the other a nonmetal. Join Yahoo Answers and get 100 points today. Geiger, J.; Pfeiffer, H.-C., Cesium chloride crystallizes in a cubic lattice. Favorite Answer. Cesium iodide, a simple ionic salt at low pressures, undergoes a second-order transformation at 40 gigapascals (400 kilobars) from the cubic B2 (cesium chloride-type) structure to the body-centered tetragonal structure. Cesium reacts explosively with cold water, and reacts with ice at temperatures above -116°C. But you were 100% correct, the reaction between cesium and iodine is simply, cesium iodide. Wang, Y.L. It is often used as the input phosphor of an X-ray image intensifier tube found in fluoroscopy equipment. Potassium iodide's chemical formula is KI, where K is potassium and I is iodine. Caesium iodide photocathodes are highly efficient at extreme ultraviolet wavelengths. 1454. It is an ionic compound and each potassium ion has a charge of +1, while each iodine ion has a charge of -1. Anonymous. Proc. A, 1974, 29, 819. Soc. It has a chemical formula CaI 2. also available. A, 1972, 27, 1017. 203033. Iron (III) phosphide has the weight of 86.82 grams per mole. 58 / Monday, March 26, 2012 / Rules and Regulations Issue date: 01/10/2014 Revision date: 10/23/2020 Supersedes: 09/27/2016 Version: 1.3 11/17/2020 EN (English US) Page 1 SECTION 1: Identification . 7789-17-5. Part 8. So, it burns with iodine, I2, to form caesium(I) iodide, CsI. displays seen below. Molar mass of CsI = 259.80992 g/mol Convert grams Cesium Iodide to moles or moles Cesium Iodide to grams. Information on this page: Notes; Other data available: Phase change data; Reaction thermochemistry data; Gas phase ion energetics data; Ion clustering data; Constants of diatomic molecules; Data at other public NIST sites: 62K1064 – you will only find the COO if Potassium iodide is made of ions such as K + I and behaves like an ionic salt. Animal studies indicated that stable cesium and its salts have relatively low toxicity, with acute oral LD 50 values for rats and mice in the range 800–2000 mg kg −1, with the exception of cesium hydroxide, which is more toxic than cesium iodide or cesium chloride and has an intraperitoneal LD 50 of 89 mg kg −1. Undoped CsI, being an intrinsic scintillator, has very different scintillation proper-ties from the more widely used CsI(Tl) or CsI(Na) activated by Tl or Na respectively. P201 - P202 - P273 - P280 - P308 + P313 - P391, Methods of Synthesizing Monodisperse Colloidal Quantum Dots. Thermochimica Acta, 1998, 316, 1, 101-108, https://doi.org/10.1016/S0040-6031(98)00304-9 EC Number 232-145-2. K9. Potassium iodide can be used as an expectorant to thin mucus and loosen congestion in your chest and throat. | Privacy. This means that half of the cesium-137 has been excreted again after 110 days. Chemiluminescent spectra of alkali-halogen reactions, [all data], Davidovits and Brodhead, 1967 Potassium iodide is a chemical compound, medication, and dietary supplement. Z. . Structure, properties, spectra, suppliers and links for: Cesium oxide, 20281-00-9. Caesium iodide or cesium iodide (chemical formula CsI) is the ionic compound of caesium and iodine. Trending Questions. Vapour pressure of C60 by a transpiration method using a horizontal thermobalance, Effect of spin-orbit interaction on the photoelectron and mass spectra of the alkali halides, Venugopal, V.; Prasad, R.; Sood, D.D., If a box is not needed, lease it blank. J. Chem. CsI. uses its best efforts to deliver a high quality copy of the The CLP Regulation ensures that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union through classification and labelling of chemicals. Phys., 1967, 46, 2968. What is Potassium Iodide (KI)? In the developing world it is also used to treat skin sporotrichosis and phycomycosis. J. Chem. (It was later realised that he mistook the caesium for sodium and potassium.) Rev., 1953, 92, 901. Caesium iodide or cesium iodide (chemical formula CsI) is the ionic compound of caesium and iodine. One way to make caesium iodide is to react the hydroxide with hydroiodic acid. Ultraviolet absorption cross sections for the alkali halide vapors, Hochtemperatur-Mikrowellenspektrometer fur Zeeman-Effekt-Messungen an diamagnetischen Molekeln. ; Gorokhov, L.N. 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