Description

Bismuth Sulfide is an inorganic compound with the chemical formula Bi₂S₃, known for its distinctive dark brown to black crystalline appearance. This material is valued for its semiconducting properties and its role as a precursor in various advanced material syntheses. It is primarily utilized by industries involved in thermoelectric device manufacturing, infrared spectroscopy, and the production of specialized pigments and catalysts.

Application

• Thermoelectric Materials: A key component in the fabrication of bismuth telluride-based alloys for efficient solid-state cooling and power generation devices.
• Infrared (IR) Detection: Used in the synthesis of bismuth chalcogenides for sensitive photodetectors and sensors operating in the infrared spectrum.
• Catalyst Precursor: Serves as a starting material for catalysts used in selective hydrogenation and other organic synthesis reactions.
• Pigments and Coatings: Employed in the formulation of dark, stable pigments for specialized ceramics, glasses, and artistic applications.
• Nanomaterial Research: A precursor for synthesizing bismuth sulfide nanoparticles and nanowires for optoelectronic and biomedical research.
• Lubricant Additive: Acts as a solid lubricant or an additive to enhance the performance of high-temperature lubricants.

Basic Information

Product Name	Bismuth Sulfide
CAS No.	11104-47-5
Molecular Formula	Bi₂S₃
Molecular Weight	514.16 g/mol
Synonyms	Bismuth(III) sulfide; Bismuth trisulfide; Dibismuth trisulfide; Bismuth sesquisulfide; Mineral Bismuthinite; Bismuth glance; C.I. 77640
EINECS	234-323-0

Quality Control

Our Bismuth Sulfide is produced and tested under a stringent quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as assay, heavy metal content, and particle size distribution. Our quality protocols are designed to meet the rigorous demands of research and industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms
Assay (Bi₂S₃)	≥ 99.0%
Particle Size (D50)	< 10 µm (or as specified)
Lead (Pb)	≤ 10 ppm
Arsenic (As)	≤ 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.