Description

Iron(II) Disulfide (Isometric) is an inorganic compound with the chemical formula FeS₂, most commonly recognized in its naturally occurring mineral form, pyrite. This material is valued for its distinct crystalline structure and chemical stability, making it a subject of interest beyond its geological origins. It serves as a critical precursor and functional material in several advanced industrial and research applications. Key sectors utilizing this compound include battery technology development, catalysis, and materials science research.

Application

• Cathode Material Research: Investigated as a potential cathode or conversion-type electrode material for next-generation lithium-ion and sodium-ion batteries due to its high theoretical capacity.
• Catalysis & Chemical Synthesis: Used as a catalyst or catalyst precursor in various organic synthesis reactions and hydrodesulfurization processes.
• Semiconductor Studies: Employed in research on semiconducting and photovoltaic properties, given its natural semiconductor characteristics.
• Solid Lubricants & Coatings: Incorporated into composite materials to develop dry lubricants and wear-resistant coatings.
• Geochemical & Environmental Science: Serves as a reference material in geochemical analysis and studies of acid mine drainage processes.
• Pigments & Inorganic Colorants: Used in the formulation of certain specialty pigments and colorants.

Basic Information

Product Name	Iron(II) Disulfide (Isometric)
CAS No.	1309-36-0
Molecular Formula	FeS₂
Molecular Weight	119.98 g/mol
Synonyms	Pyrite; Iron Pyrite; Fool's Gold; Ferrous Disulfide; Iron Disulfide; Marcasite (mineralogical polymorph); Diiron Disulfide; Iron(2+) Disulfide
EINECS	215-167-7

Quality Control

Our Iron(II) Disulfide is produced and handled under a strict quality management system. Each batch undergoes comprehensive analysis to ensure consistency and meets defined specifications for purity, particle size, and crystalline phase. A Certificate of Analysis (COA) detailing key parameters is provided with every shipment. We support compliance with global regulatory frameworks, including REACH.

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 strong oxidizing agents and strong acids. The product is stable under normal storage conditions.

Specification

Item	Specification
Appearance	Brass-yellow to metallic crystalline powder
Identification (XRD)	Complies (Pyrite phase)
Assay (FeS₂)	≥ 98.0 %
Particle Size (D50)	Contact for details
Iron (Fe) Content	46.0 - 47.0 %
Sulfur (S) Content	53.0 - 54.0 %
Loss on Drying	≤ 0.5 %
Heavy Metals (as Pb)	≤ 50 ppm

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