Nickel(II) fluoride

Nickel(II) fluoride
Names
IUPAC name
Nickel(II) fluoride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.053 Edit this at Wikidata
EC Number
  • 233-071-3
RTECS number
  • QR6825000
UNII
  • InChI=1S/2FH.Ni/h2*1H;/q;;+2/p-2 checkY
    Key: DBJLJFTWODWSOF-UHFFFAOYSA-L checkY
  • InChI=1S/2FH.Ni/h2*1H;/q;;+2/p-2
    Key: DBJLJFTWODWSOF-NUQVWONBAA
  • Key: DBJLJFTWODWSOF-UHFFFAOYSA-L
  • F[Ni]F
Properties
NiF2
Molar mass 96.6902 g/mol
Appearance Yellowish to green tetragonal crystals
Density 4.72 g/cm3
Melting point 1,474 °C (2,685 °F; 1,747 K)[1]
4 g/100 mL
Solubility insoluble in alcohol, ether
+2410.0·10−6 cm3/mol
Structure
Rutile
Nickel: Octahedral
Oxygen: Trigonal planar
Hazards
Safety data sheet (SDS) External MSDS
Related compounds
Other anions
Nickel(II) chloride
Nickel(II) bromide
Nickel(II) iodide
Other cations
Cobalt(II) fluoride
Copper(II) fluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Nickel(II) fluoride is the chemical compound with the formula NiF2. It is an ionic compound of nickel and fluorine and forms yellowish to green tetragonal crystals. Unlike many fluorides, NiF2 is stable in air.

Nickel(II) fluoride is also produced when nickel metal is exposed to fluorine. In fact, NiF2 comprises the passivating surface that forms on nickel alloys (e.g. monel) in the presence of hydrogen fluoride or elemental fluorine. For this reason, nickel and its alloys are suitable materials for storage and transport these fluorine and related fluorinating agents. NiF2 is also used as a catalyst for the synthesis of chlorine pentafluoride.