Manganese(II) hydroxide

Manganese(II) hydroxide
Names
Other names
Manganese dihydroxide, manganese hydroxide, Manganous hydroxide, Pyrochroite
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.126.826 Edit this at Wikidata
EC Number
  • 606-171-3
  • InChI=1S/Mn.2H2O/h;2*1H2/q+2;;/p-2
    Key: IPJKJLXEVHOKSE-UHFFFAOYSA-L
  • [OH-].[OH-].[Mn+2]
Properties
H2MnO2
Molar mass 88.952 g·mol−1
Appearance white to pink solid
Density 3.258 g/cm3
Melting point 140 °C (284 °F; 413 K) decomposes
0.00034 g/100 mL at 18 °C.[1]
Solubility soluble in acid
1.68
Structure
hexagonal
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Manganese(II) hydroxide is the inorganic compound with the formula Mn(OH)2. It is a white solid although samples darken quickly upon exposure to air owing to oxidation. It is poorly soluble in water.

  1. ^ Lide, David R., ed. (2006). CRC Handbook of Chemistry and Physics (87th ed.). Boca Raton, FL: CRC Press. ISBN 0-8493-0487-3.