Nickel(II) bromide

Nickel(II) bromide
IUPAC name Nickel(II) bromide
Other names Nickel dibromide, Nickel bromide, Nickelous bromide
Identifiers
CAS number	13462-88-9 Y
PubChem	278492
Properties
Molecular formula	NiBr2
Molar mass	218.53 g/mol
Appearance	yellow-brown crystals
Odor	odorless
Density	5.098 g/cm3[1]
Melting point	963 ˚C
Solubility in water	Soluble in water and ethanol
Hazards
EU Index	Not listed
Main hazards	Irritant, corrosive
NFPA 704	0 1 0
Flash point	Non-flammable
Related compounds
Other anions	nickel(II) fluoride nickel(II) chloride nickel(II) iodide
Other cations	cobalt(II) bromide copper(II) bromide palladium(II) bromide
Y (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

Nickel(II) bromide, NiBr₂, is the nickel salt of hydrobromic acid. It can be made by reacting nickel, nickel(II) oxide, nickel(II) carbonate, or nickel(II) hydroxide with hydrobromic acid. It can also be made by reacting nickel with bromine. It is a weak reducing agent.

It is yellow-brown, rhombohedral, hygroscopic, and is soluble in water and in ethanol. It dissolves in water to make a blue-green solution typical of soluble nickel(II) compounds. It can be used as a source of the bromide ion. It reacts with bases to make nickel(II) hydroxide.

Nickel(II) bromide, like most nickel compounds, is toxic and a suspected carcinogen. It can cause contact dermatitis in skin. The bromide ion is also mildly toxic.

References

1. ^ http://chemdat.merck.de/documents/sds/emd/deu/de/8181/818174.pdf