Silver oxide

This article is about silver(I) oxide. For the mixed-valence oxide, see Silver(I,III) oxide.
Silver oxide
Names
IUPAC name
Silver(I) oxide
Other names
Silver rust, Argentous oxide, Silver monoxide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.039.946
EC Number
  • 243-957-1
MeSH silver+oxide
RTECS number
  • VW4900000
UNII
  • InChI=1S/2Ag.O/q2*+1;-2 N
    Key: NDVLTYZPCACLMA-UHFFFAOYSA-N N
  • InChI=1S/2Ag.O/q2*+1;-2
    Key: NDVLTYZPCACLMA-UHFFFAOYSA-N
  • [O-2].[Ag+].[Ag+]
Properties
Ag2O
Molar mass 231.735 g·mol−1
Appearance Black/brown cubic crystals
Odor Odorless
Density 7.14 g/cm3
Melting point decomposes from ≥350 °C
0.013 g/L (20 °C)
0.025 g/L (25 °C)
0.053 g/L (80 °C)
Solubility product (Ksp) of AgOH
 1.52·10−8 (20 °C)
Solubility Soluble in acid, alkali
Insoluble in ethanol
Acidity (pKa) 12.1 (estimated)
−134.0·10−6 cm3/mol
Structure
Cubic
Pn3m, 224
Thermochemistry
65.9 J/mol·K
122 J/mol·K
−31 kJ/mol
−11.3 kJ/mol
Hazards
GHS labelling:
Danger
H272, H315, H319, H335
P220, P261, P305+P351+P338
NFPA 704 (fire diamond)
2
0
1
Lethal dose or concentration (LD, LC):
2.82 g/kg (rats, oral)
Related compounds
Related compounds
 Silver(I,III) oxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

Silver oxide is the chemical compound with the formula Ag2O. It is a fine black or dark brown powder that is used to prepare other silver compounds.

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