Structure via PubChem · Public domain (PubChem)
In the Vinony graph
Vinony's link graph records 227 inbound references to silver sulfide, and connects out to silver, photography and Michael Faraday.
It is catalogued under topics including Chembox having GHS data, Chembox image size set and ECHA InfoCard ID from Wikidata.
Vinony links it to 31 Wikipedia language editions.
Chemical data
- Formula
- Ag2S
- Molecular weight
- 247.8 g/mol
- IUPAC name
- disilver;sulfide
- SMILES
- [S-2].[Ag+].[Ag+]
- InChIKey
- XUARKZBEFFVFRG-UHFFFAOYSA-N
- Polar surface area
- 1 Ų
- H-bond donors
- 0
- H-bond acceptors
- 1
- Formal charge
- 0
via PubChem
Wikidata facts
- Mass
- 245.782265
- Image
- Sulfid stříbrný.PNG
Show 8 more facts
- chemical formula
- Ag₂S
- canonical SMILES
- [S-2].[Ag+].[Ag+]
- Commons category
- Silver sulfide
- density
- 7.317
- Mohs' hardness
- 2.3
- melting point
- 832
- standard enthalpy of formation
- -33
- molar fusion enthalpy
- 14.06
via Wikidata · CC0
~4 min read
Encyclopedic overview
Silver sulfide is an inorganic compound with the formula Ag 2S. A dense black solid, it is the only sulfide of silver. It is useful as a photosensitizer in photography. It constitutes the tarnish that forms over time on silverware and other silver objects. Silver sulfide is insoluble in most solvents, but is degraded by strong acids. Silver sulfide is a network solid made up of silver (electronegativity of 1.98) and sulfur (electronegativity of 2.58) where the bonds have low ionic character (approximately 10%).
Formation
Excerpted from Wikipedia’s “silver sulfide” article, available under the CC BY-SA 4.0 licence.