Silver sulfide, Premion™, 99.995% (metals basis)

Description

CAS: 21548-73-2 | Ag2S | 247.80 g/mol

It finds use as a photosensitizer in photography. Blackening the silver for jewelleries and disinfection/sterilization of reservoirs. Anti-bacterial and anti-microbial agents. Laboratory reagents. A mixed ionic-electronic conductor. In IR detectors, photoconductors, photovoltaic cells, electrochemical storage cells, etc. Black colorant in ceramic glazes and for niello metal work. Autometallography in the detection of catalytic tissue metals and colloidal gold particles bound to macromolecules.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 21548-73-2
• Molecular Formula: Ag2S
• Molecular Weight (g/mol): 247.80
• MDL Number: MFCD00003406
• InChI Key: XUARKZBEFFVFRG-UHFFFAOYSA-N
• IUPAC Name: disilver(1+) sulfanediide
• SMILES: [S--].[Ag+].[Ag+]

• Melting Point: 825°C
• Color: Gray to Black
• Physical Form: Powder
• Quantity: 25 g
• Assay Percent Range: 99.998% (metals basis)
• Solubility Information: Insoluble in most of the solvents. Insoluble in acids,alkalies and aqueous ammoniums.
• Formula Weight: 247.8
• Odor: Odorless
• Sensitivity: Light sensitive
• Appearance: Dark grey to black powder/flake/crystalline/beads
• Density: 7.317
• Chemical Name or Material: Silver sulfide

Safety and Handling

Hazard Category	H400-H410: Very toxic to aquatic life. Very toxic to aquatic life with long lasting effects.
DOTInformation	DOT Class: 9, Packaging Group: III
EINECSNumber	244-438-2
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only