Description

Antimony Pentasulfide is an inorganic compound primarily recognized for its role as a key vulcanizing agent in the rubber industry. Its ability to facilitate cross-linking in rubber polymers is critical for enhancing the durability, elasticity, and heat resistance of final products. This compound is essential for manufacturers in the rubber, pyrotechnics, and specialty chemical sectors seeking reliable performance and consistent quality in their formulations.

Application

• Rubber Vulcanization: A primary vulcanizing agent for natural and synthetic rubber, improving tensile strength and elasticity.
• Pyrotechnics and Matches: Used in the production of safety matches and certain pyrotechnic compositions for its ignition properties.
• Pigment Production: Serves as a starting material or component in the manufacture of certain yellow and red pigments.
• Friction Materials: Incorporated into brake pads and clutch facings to modify frictional properties and stability.
• Lithium Battery Anodes: Investigated as a potential high-capacity anode material in lithium-ion battery research.
• Military Smokescreens: A component in formulations for generating screening smokes.

Basic Information

Product Name	Antimony Pentasulfide
CAS No.	1315-04-4
Molecular Formula	Sb2S5
Molecular Weight	403.82 g/mol
Synonyms	Antimony(V) sulfide; Diantimony pentasulfide; Antimony persulfide; Antimony red; Golden antimony sulfide; Sulfur antimonide (Sb2S5); Stibnite (refined); Antimony pentasulphide
EINECS	215-255-5

Quality Control

Our Antimony Pentasulfide is produced under strict quality management protocols to ensure batch-to-batch consistency and reliability. We provide comprehensive Certificates of Analysis (COA) for every shipment, detailing key parameters such as assay, particle size, and impurity profiles. Our quality systems are designed to meet the rigorous demands of industrial and specialty chemical applications.

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 oxidizing agents. Keep container tightly sealed when not in use to minimize exposure to moisture and air.

Specification

Item	Specification
Appearance	Orange-red to dark brown powder
Identification (IR)	Conforms
Assay (Sb2S5)	≥ 95.0 %
Antimony (Sb) Content	Contact for details
Sulfur (S) Content	Contact for details
Particle Size (D50)	< 50 µm (or as specified)
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 5 ppm

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