Copper(II) tetrafluoroborate

Copper(II) tetrafluoroborate^[1]

Names
IUPAC name Copper(II) tetrafluoroborate
Identifiers
CAS Number	14735-84-3
ChemSpider	21241480
Jmol interactive 3D	Image
PubChem	170058
InChI InChI=1S/2BF4.Cu.H2O/c2*2-1(3,4)5;;/h;;;1H2/q2*-1;+2; Key: JYLPBVRGTDBGBM-UHFFFAOYSA-N InChI=1/2BF4.Cu.H2O/c2*2-1(3,4)5;;/h;;;1H2/q2*-1;+2; Key: JYLPBVRGTDBGBM-UHFFFAOYAF
SMILES [Cu+2].F[B-](F)(F)F.F[B-](F)(F)F.O
Properties
Chemical formula	Cu(BF4)2
Molar mass	237.155 g/mol
Appearance	solid
Solubility in water	soluble in water
Hazards
US health exposure limits (NIOSH):
PEL (Permissible)	TWA 1 mg/m^3 (as Cu)[2]
REL (Recommended)	TWA 1 mg/m^3 (as Cu)[2]
IDLH (Immediate danger	TWA 100 mg/m^3 (as Cu)[2]
Related compounds
Other anions	Copper(II) chloride Copper(II) oxide Copper(II) triflate
Other cations	Sodium tetrafluoroborate Lithium tetrafluoroborate Silver tetrafluoroborate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Copper(II) tetrafluoroborate is the copper salt of tetrafluoroboric acid which involves copper in its +2 oxidation state bonded to two tetrafluoroborate anions (BF₄⁻). Tetrafluoroborate adopts a tetrahedral shape, similar to that of methane. The central boron atom has a formal charge of −1, because of its four covalent bonds. Its oxidation state is +3.^[3]

References

1. Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 4–56, ISBN 0-8493-0594-2
2. "NIOSH Pocket Guide to Chemical Hazards #0150". National Institute for Occupational Safety and Health (NIOSH).
3. Copper(II) Tetrafluorborate, chemicalland21.com