Copper benzoate

Copper benzoate
IUPAC name copper dibenzoate
Other names cupric benzoate
Identifiers
CAS number	533-01-7
PubChem	164650
ChemSpider	144339 Y
Jmol-3D images	Image 1
SMILES [Cu+2].[O-]C(=O)c1ccccc1.[O-]C(=O)c1ccccc1
InChI InChI=1S/2C7H6O2.Cu/c2*8-7(9)6-4-2-1-3-5-6;/h2*1-5H,(H,8,9);/q;;+2/p-2 Y Key: YEOCHZFPBYUXMC-UHFFFAOYSA-L Y InChI=1/2C7H6O2.Cu/c2*8-7(9)6-4-2-1-3-5-6;/h2*1-5H,(H,8,9);/q;;+2/p-2 Key: YEOCHZFPBYUXMC-NUQVWONBAX
Properties
Molecular formula	C14H10CuO4
Molar mass	305.7728 g/mol
Appearance	blue solid
Density	1.197g/cm3
Boiling point	249.3°C @760mmHg
Hazards
Flash point	111.4°C
Related compounds
Other cations	sodium benzoate
Y benzoate (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Copper benzoate is the chemical compound with the formula Cu(C₆H₅CO₂)₂. This coordination complex is derived from the cupric ion and the conjugate base of benzoic acid. Because copper emits blue when heated in a flame, this salt has found some use as a source of blue light in fireworks.^[1]

Preparation and structure

As for copper(II) acetate,^[2] the benzoate adopts a "Chinese lantern" structure, wherein a pair of copper centers are linked by four bridging carboxylate ligands. Typically one site on each copper center is occupied by water, which can be replaced by other ligands.

References

1. ^ "Wouter's Practical Pyrotechnics page". http://www.wfvisser.dds.nl/EN/cheminfo_EN.html#copperbenzoate. 
2. ^ Wells, A.F. (1984) Structural Inorganic Chemistry, Oxford: Clarendon Press. ISBN 0-19-855370-6.