Nickel(II) hydroxide

Nickel(II) hydroxide
Nickel(II) hydroxide
Identifiers
CAS number 12054-48-7 YesY
36897-37-7 (monohydrate)
PubChem 61534
ChemSpider 55452 YesY
RTECS number QR6480000
Jmol-3D images Image 1
Properties
Molecular formula Ni(OH)2
Molar mass 92.708 g/mol (anhydrous)
110.72 g/mol (monohydrate)
Appearance green crystals
Density 4.10 g/cm3
Melting point

230 °C (anhydrous, decomp)

Solubility in water insoluble
Solubility soluble in dilute acid, ammonia (monohydrate)
Structure
Crystal structure hexagonal
Thermochemistry
Std enthalpy of
formation
ΔfHo298
-530.049 kJ/mol
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references
The test tube in the middle contains a precipitate of nickel(II) hydroxide

Nickel(II) hydroxide Ni(OH)2 is an insoluble compound commonly used in rechargeable battery electrodes. When charged these electrodes form nickel(III) oxide-hydroxide. Nickel(II) hydroxide is a precipitate formed when the hexaaquanickel(II) ion is mixed with aqueous alkali. The mineralogical form is very rare and is called theophrastite.

See also

External links


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Nickel–cadmium battery — From top to bottom – Gumstick , AA, and AAA Ni–Cd batteries. specific energy 40–60 W·h/kg energy density 50–150 W·h/L specific power 150& …   Wikipedia

  • Nickel(III) oxide — IUPAC name Nickel (III) oxide Other names Nickel sesquiox …   Wikipedia

  • Nickel(II) bromide — Nickel(II) bromide …   Wikipedia

  • Nickel(II) fluoride — Nickel(II) fluoride …   Wikipedia

  • Nickel chromate — IUPAC name Nickel(II) chromate …   Wikipedia

  • Nickel(II) iodide — Nickel(II) iodide …   Wikipedia

  • Nickel-cadmium battery — Batteries caption=From top to bottom Gumstick , AA, and AAA NiCd batteries. EtoW = 40–60 Wh/kg EtoS = 50–150 Wh/L PtoW = 150W/kg CtoDE= 70%–90% [ [http://www.batteryuniversity.com/partone 11.htm Charging nickel based batteries ] ] EtoCP= ? US$… …   Wikipedia

  • Nickel–metal hydride battery — NiMH redirects here. For other uses, see NIMH (disambiguation). Nickel–metal hydride battery Modern, high capacity NiMH rechargeable cells specific energy 60–120 W·h/kg[1] …   Wikipedia

  • Nickel(II)-hydroxid — Kristallstruktur Ni2+      …   Deutsch Wikipedia

  • Nickel iodide — chembox new ImageFile = ImageSize = IUPACName = OtherNames = Nickelous iodide Section1 = Chembox Identifiers Abbreviations = CASNo = 13462 90 3 EINECS = PubChem = SMILES = InChI = RTECS = MeSHName = ChEBI = KEGG = ATCCode prefix = ATCCode suffix …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”