Description

Silver(I) Sulfide is an inorganic compound with the chemical formula Ag₂S, known for its high photosensitivity and semiconductor properties. This material is critical for applications requiring precise control over electrical and optical characteristics. It serves as a key raw material in the electronics, photovoltaics, and advanced materials research sectors, where consistent purity and particle morphology are essential for performance.

Application

• Photovoltaic and Semiconductor Manufacturing: Used in the fabrication of thin-film solar cells and as a component in certain semiconductor devices due to its photoconductive properties.
• Infrared Optics and Sensors: Employed in the production of infrared detectors and optical filters, leveraging its specific bandgap.
• Catalysis Research: Acts as a catalyst or catalyst precursor in various organic synthesis and hydrogenation reactions.
• Electrochemical Systems: Utilized in the development of solid-state electrolytes and electrode materials for specialized batteries and sensors.
• Photographic Chemistry: Historically and in specialized applications, serves as a light-sensitive material in photographic emulsions.
• Nanomaterials Synthesis: A precursor for synthesizing silver sulfide nanoparticles with tunable properties for biomedical imaging and targeted therapies.
• Antimicrobial Coatings: Incorporated into surface coatings where the slow release of silver ions provides antimicrobial efficacy.
• Academic and Industrial R&D: Serves as a standard or research chemical in materials science and inorganic chemistry laboratories.

Basic Information

Product Name	Silver(I) Sulfide
CAS No.	21548-73-2
Molecular Formula	Ag₂S
Molecular Weight	247.80 g/mol
Synonyms	Silver sulfide; Disilver monosulfide; Argentous sulfide; Silver glance (mineral form); Acanthite; Ag₂S; Silver(1+) sulfide; Silver monosulfide
EINECS	244-438-2

Quality Control

Our Silver(I) Sulfide is manufactured under controlled conditions to ensure batch-to-batch consistency and high purity. Quality is verified through a suite of analytical techniques including X-ray diffraction (XRD), inductively coupled plasma (ICP) analysis, and scanning electron microscopy (SEM) for particle size distribution. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong acids and oxidizing agents. Due to its light-sensitive nature, minimize exposure during handling.

Specification

Item	Specification
Appearance	Grayish-black to black powder
Identification (XRD)	Conforms to Ag₂S pattern
Assay (Ag₂S)	≥ 99.9%
Silver (Ag) Content	≥ 87.0%
Particle Size (D50)	1-10 µm (or as specified)
Impurities (ICP-OES)
- Copper (Cu)	≤ 10 ppm
- Iron (Fe)	≤ 20 ppm
- Lead (Pb)	≤ 5 ppm
Loss on Drying	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.