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CAS No 7783-68-8 , niobium pentafluoride

  • Name: niobium pentafluoride
  • Synonyms: COLUMBIUM PENTAFLUORIDE;niobium pentafluoride;Niobium(V)fluoride,99.5%;NIOBIUM FLUORIDE;(betab-5-11)-niobiumfluoride(nbf5;NIOBIUM PENTAFLUORIDE;Niobium(V)fluoride,99%;Niobium pentafluoride 99.5%;NIOBIUM(V) FLUORIDE;
  • CAS Registry Number:
  • Transport: UN 3260 8/PG 2
  • Melting Point: 72 °C
  • Boiling Point: 220 °C
  • Density: 3.92
  • Safety Statements: 26-27-28-36/37/39-45
  • Hazard Symbols: C
  • EINECS: 232-020-2
  • Molecular Weight: 187.9
  • InChI: InChI=1/5FH.Nb/h5*1H;/q;;;;;+5/p-5/rF5Nb/c1-6(2,3,4)5
  • Risk Statements: 20/21/22-34
  • Molecular Formula: F5Nb
  • Molecular Structure:CAS No:7783-68-8 niobium pentafluoride

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7783-68-8 NIOBIUM(V) FLUORIDE; 99.5%

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References of niobium pentafluoride
Title: Niobium Pentafluoride
CAS Registry Number: 7783-68-8
Synonyms: Columbium pentafluoride
Molecular Formula: F5Nb
Molecular Weight: 187.90
Percent Composition: F 50.55%, Nb 49.44%
Line Formula: NbF5
Literature References: Prepn from NbCl5 + HF: Ruff, Zedner, Ber. 42, 492 (1909); Ruff, Schiller, Z. Anorg. Allg. Chem. 72, 329 (1911); Kwasnik in Handbook of Preparative Inorganic Chemistry Vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) p 254. Prepn from the elements: Fairbrother, Frith, J. Chem. Soc. 1951, 3051; Junkins et al., J. Am. Chem. Soc. 74, 3464 (1952). Review of transition metal pentafluorides: Peacock, Adv. Fluorine Chem. 7, 113-145 (1973).
Properties: Strongly refractive, deliquescent, monoclinic crystals, d480 2.6955. mp 80.0°; bp 234.9°. Appreciable vapor pressure at 50°. Hydrolyzes in water, alc, caustic solns. Sparingly sol in carbon disulfide, chloroform. More sol in concd H2SO4 than TaF5. Forms complexes with Lewis bases.
Melting point: mp 80.0°
Boiling point: bp 234.9°
Density: d480 2.6955