Description

Antimony (III) Sulfide is a high-purity inorganic compound, also known as antimony trisulfide or stibnite. This material is valued for its role as a key precursor in flame retardant formulations and its semiconductor properties. It is essential for manufacturers in the plastics, electronics, and pyrotechnics industries seeking reliable, high-quality raw materials.

Application

• Flame Retardant Synergist: A critical component in halogen-based flame retardant systems for plastics, rubber, and textiles.
• Pyrotechnics and Matches: Used in the production of safety matches and various pyrotechnic compositions for its ignition properties.
• Semiconductor and Photoconductor: Employed in the manufacturing of certain semiconductor devices, infrared detectors, and photoconductive cells.
• Pigment and Coloring Agent: Serves as a black pigment in the production of paints, ceramics, and glass.
• Lubricant Additive: Acts as a solid lubricant or an additive in friction materials and brake pads.
• Military and Defense: Used in camouflage paints, smoke screen formulations, and certain munitions.
• Chemical Synthesis: A starting material for the synthesis of other antimony compounds and in vulcanization processes for rubber.

Basic Information

Product Name	Antimony (III) Sulfide
CAS No.	1345-04-6
Molecular Formula	Sb2S3
Molecular Weight	339.72 g/mol
Synonyms	Antimony Trisulfide; Diantimony Trisulfide; Stibnite; Antimony Sulfide (Sb2S3); Antimony Sesquisulfide; Black Antimony; Needle Antimony; Antimonous Sulfide; Antimony(3+) Sulfide
EINECS	215-713-4

Quality Control

Our Antimony (III) Sulfide is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and strong oxidizers. Recommended storage temperature is 15-25°C. The product is moisture-sensitive (hygroscopic).

Specification

Item	Specification
Appearance	Black to grayish-black powder or crystals
Identification (IR)	Conforms
Assay (Sb2S3)	≥ 99.0%
Antimony (Sb) Content	71.0 - 71.8%
Lead (Pb)	≤ 0.05%
Arsenic (As)	≤ 0.01%
Iron (Fe)	≤ 0.02%
Water Soluble Matter	≤ 0.2%
Loss on Drying	≤ 0.5%
Particle Size (Typical)	Contact for details

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