Actinium fluoride can be prepared in solution or by a solid-state reaction. In the first method, actinium hydroxide is treated with hydrofluoric acid and the product precipitates:[3]
In the solid-state reaction, actinium metal is treated with hydrogen fluoride gas at 700 °C in a platinum crucible.[4][5]
Propertiesedit
Actinium fluoride is a white solid that reacts with ammonia at 900–1000 °C to yield an actinium oxyfluoride:
While lanthanum oxyfluoride is easily formed by heating lanthanum fluoride in air, a similar treatment merely melts actinium fluoride and does not yield AcOF.[4][5]
^Zachariasen, W. H. (1949). "Crystal chemical studies of the 5f-series of elements. XII. New compounds representing known structure types". Acta Crystallographica. 2 (6): 388–390. Bibcode:1949AcCry...2..388Z. doi:10.1107/S0365110X49001016.
^ Haire, Richard G. (2006). "Actinium". In Morss; Edelstein, Norman M.; Fuger, Jean (eds.). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media. p. 36. ISBN1-4020-3555-1.
^ abFried, Sherman; Hagemann, French; Zachariasen, W. H. (1950). "The Preparation and Identification of Some Pure Actinium Compounds". Journal of the American Chemical Society. 72 (2): 771. doi:10.1021/ja01158a034.
^ abMeyer, Gerd and Morss, Lester R. (1991) Synthesis of lanthanide and actinide compounds. Springer. ISBN0-7923-1018-7. pp. 87–88
April 13, 2024
actinium, fluoride, acf3, inorganic, compound, salt, actinium, fluorine, actinium, fluoride, crystal, structurenamesother, names, actinium, trifluorideidentifierscas, number, 33689, model, jsmol, interactive, imagepubchem, 101943120inchi, inchi, yinchi, 3smile. Actinium III fluoride AcF3 is an inorganic compound a salt of actinium and fluorine Actinium fluoride Crystal structureNamesOther names Actinium III fluorideActinium trifluorideIdentifiersCAS Number 33689 80 4 Y3D model JSmol Interactive imagePubChem CID 101943120InChI InChI 1S Ac 3FH h 3 1H q 3 p 3 YInChI 1 Ac 3FH h 3 1H q 3 p 3SMILES F Ac F FPropertiesChemical formula AcF3Molar mass 284 g mol 1 Appearance white crystalline solidDensity 7 88 g cm3 1 StructureCrystal structure Rhombohedral hR24Space group P3 c1 No 165 2 Lattice constant a 0 741 nm c 0 755 nmLattice volume V 0 35902Formula units Z 6Except where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Y verify what is Y N Infobox referencesSynthesis editActinium fluoride can be prepared in solution or by a solid state reaction In the first method actinium hydroxide is treated with hydrofluoric acid and the product precipitates 3 Ac OH 3 3HF AcF3 3H2O displaystyle ce Ac OH 3 3HF gt AcF 3 v 3H2O nbsp In the solid state reaction actinium metal is treated with hydrogen fluoride gas at 700 C in a platinum crucible 4 5 Properties editActinium fluoride is a white solid that reacts with ammonia at 900 1000 C to yield an actinium oxyfluoride AcF3 2NH3 H2O AcOF 2NH4F displaystyle ce AcF3 2NH3 H2O gt AcOF 2NH4F nbsp While lanthanum oxyfluoride is easily formed by heating lanthanum fluoride in air a similar treatment merely melts actinium fluoride and does not yield AcOF 4 5 References edit a b Haynes William M ed 2011 CRC Handbook of Chemistry and Physics 92nd ed Boca Raton FL CRC Press p 4 44 ISBN 1 4398 5511 0 Zachariasen W H 1949 Crystal chemical studies of the 5f series of elements XII New compounds representing known structure types Acta Crystallographica 2 6 388 390 Bibcode 1949AcCry 2 388Z doi 10 1107 S0365110X49001016 Haire Richard G 2006 Actinium In Morss Edelstein Norman M Fuger Jean eds The Chemistry of the Actinide and Transactinide Elements 3rd ed Dordrecht The Netherlands Springer Science Business Media p 36 ISBN 1 4020 3555 1 a b Fried Sherman Hagemann French Zachariasen W H 1950 The Preparation and Identification of Some Pure Actinium Compounds Journal of the American Chemical Society 72 2 771 doi 10 1021 ja01158a034 a b Meyer Gerd and Morss Lester R 1991 Synthesis of lanthanide and actinide compounds Springer ISBN 0 7923 1018 7 pp 87 88 Retrieved from https en wikipedia org w index php title Actinium III fluoride amp oldid 1196782674, wikipedia, wiki, book, books, library,
