Basic information Physical Properties Occurrence and Uses Preparation Safety Supplier Related
ChemicalBook >  Product Catalog >  Inorganic chemistry >  Inorganic salts >  Colloidal precious metals >  SILVER(I) SULFIDE

SILVER(I) SULFIDE

Basic information Physical Properties Occurrence and Uses Preparation Safety Supplier Related

SILVER(I) SULFIDE Basic information

Product Name:
SILVER(I) SULFIDE
Synonyms:
  • SILVER SULFIDE
  • SILVER SULPHIDE
  • SILVER(I) SULFIDE
  • disilver sulphide
  • Silver(I) Sulphide
  • Silver(I) sulfide, Premion(R), 99.998% (metals basis)
  • Silver(I) sulfide, Premion, 99.998% (metals basis)
  • SILVER(I) SULFIDE, 99.9%
CAS:
21548-73-2
MF:
Ag2S
MW:
247.8
EINECS:
244-438-2
Product Categories:
  • Catalysis and Inorganic Chemistry
  • Chemical Synthesis
  • Inorganics
  • Chalcogenides
  • Metal and Ceramic Science
  • Silver
  • Materials Science
Mol File:
21548-73-2.mol
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SILVER(I) SULFIDE Chemical Properties

Melting point:
845 °C (lit.)
Boiling point:
decomposes [HAW93]
Density 
7.234 g/mL at 25 °C (lit.)
solubility 
Soluble in aq. HCN, aq. citric acid with KNO3. Insoluble in acids, alkalies, aqueous ammoniums.
form 
Powder
color 
Light yellow
Specific Gravity
7.317
Water Solubility 
Soluble in HNO{3}, alkali cyanide solutions. Insoluble in water
Sensitive 
Light Sensitive
Merck 
14,8530
crystal system
Monoclinic
Space group
P21/n
Solubility Product Constant (Ksp)
pKsp: 49.20
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.4230.6910.7879099.58900.2268
Stability:
Stable. Incompatible with acids, strong oxidizing agents.
CAS DataBase Reference
21548-73-2(CAS DataBase Reference)
EPA Substance Registry System
Silver sulfide (21548-73-2)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
8
TSCA 
Yes
HazardClass 
9
HS Code 
28432900

MSDS

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SILVER(I) SULFIDE Usage And Synthesis

Physical Properties

Grayish-black orthogonal crystals or powder; density 7.23 g/cm3; Moh’s hardness 2.3; melts at 825°C; insoluble in water; soluble in nitric and sulfuric acids.

Occurrence and Uses

Silver sulfide occurs in nature as mineral argentite. It is used in ceramics.

Preparation

Mineral argentite is mined from mineral deposits, crushed, ground, and washed for use. In the laboratory, silver sulfide is obtained by passing hydrogen sulfide gas through a solution of silver nitrate. The precipitate is washed with hot water.

Chemical Properties

Grayish-black powder.Soluble in concentrated sulfuric and nitric acids; insoluble in water.

Physical properties

Physical Properties Grayish-black orthogonal crystals or powder; density 7.23 g/cm3; Moh’s hardness 2.3; melts at 825°C; insoluble in water; soluble in nitric and sulfuric acids.

Uses

Silver sulfide is useful as a photosensitizer in photography, Intermediates, chemical research.

Uses

Silver sulfide is a brownish back powder formed by the combination of an alkaline sulfide with silver. It is a very stable compound made when toning silver-based images in sulfides. It is soluble in sulfuric and nitric acids but insoluble in water and alcohol.

Uses

Inlaying in niello metalwork, ceramics.

General Description

SRM 8553_cert SRM 8553 _SDS

SILVER(I) SULFIDESupplier

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