ChemicalBook Product Catalog Inorganic chemistry Inorganic salts Metal halide and Halogen salt Metal fluoride and salt MOLYBDENUM HEXAFLUORIDE

MOLYBDENUM HEXAFLUORIDE

MOLYBDENUM HEXAFLUORIDE Basic information
Product Name:MOLYBDENUM HEXAFLUORIDE
Synonyms:(oc-6-11)-molybdenumfluoride(mof6;Hexafluoromolybdenum;MoF6;Molybdenum fluoride (MoF6);Molybdenum fluoride (MoF6), (OC-6-11)-;MOLYBDENUM HEXAFLUORIDE;MOLYBDENUM FLUORIDE;MOLYBDENUM(VI) FLUORIDE
CAS:7783-77-9
MF:F6Mo
MW:209.93
EINECS:232-026-5
Product Categories:
Mol File:7783-77-9.mol
MOLYBDENUM HEXAFLUORIDE Structure
MOLYBDENUM HEXAFLUORIDE Chemical Properties
Melting point 17.5 °C(lit.)
Boiling point 37 °C(lit.)
density 2.3 g/mL at 25 °C(lit.)
Fp 35°CC
solubility Miscible with saturated hydrocarbons, chlorinated and fluorinated hydrocarbons.
form Liquid
color Colorless
Water Solubility hydrolyzed in H2O; soluble anhydrous HF: 1.5 moles/1000g HF [MER06]
Crystal StructureCubic
Sensitive Hygroscopic
Merck 14,6237
Exposure limitsACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3
CAS DataBase Reference7783-77-9(CAS DataBase Reference)
EPA Substance Registry SystemMolybdenum fluoride (MoF6), (OC-6-11)- (7783-77-9)
Safety Information
Hazard Codes C
Risk Statements 34
Safety Statements 26-36/37/39-45
RIDADR UN 3264 8/PG 2
WGK Germany 3
RTECS QA4681450
F 10-21
Hazard Note Corrosive
TSCA Yes
HazardClass 6.1
PackingGroup II
HS Code 28261990
MSDS Information
ProviderLanguage
ACROS English
SigmaAldrich English
ALFA English
MOLYBDENUM HEXAFLUORIDE Usage And Synthesis
Chemical Propertiesliquid
Physical propertiesWhite cubic crystals or colorless volatile liquid; hygroscopic; density 2.54 g/cm3; melts at 17.5°C; boils at 34°C; critical temperature 200°C; critical pressure 46.88 atm; critical volume 226 cm3/mol; reacts with water (hydrolyzed).
UsesMolybdenum(VI) fluoride plays an important role in the semiconductor industry and the nuclear industry.
UsesSeparation of molybdenum isotopes.
DefinitionChEBI: Molybdenum hexafluoride is a molybdenum halide.
PreparationMolybdenum hexafluoride is prepared by passing fluorine over molybdenum powder:
Mo + 3F2 → MoF6.
HazardStrong irritant.
Purification MethodsPurify the hexafluoride by low-temperature trap-to-trap distillation over pre-dried NaF. It is hygroscopic, fumes in moist air and is hydrolysed readily by H2O. [Oppengard et al. J Am Chem Soc 82 3825 1960, Anderson & Winfield J Chem Soc, Dalton Trans 337 1986, Kwasnik in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 259 1963.] Poisonous vapours.
MOLYBDENUM HEXAFLUORIDE Preparation Products And Raw materials
Raw materialsFluorine
Sulfur tetrafluoride MOLYBDENUM(V) CHLORIDE Iodine pentafluoride Molybdenum MOLYBDENUM HEXAFLUORIDE
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