Description

Manganese Sulfide is an inorganic compound with the chemical formula MnS, primarily valued for its role as a solid lubricant and alloying agent. It is a critical additive in the production of free-machining steels, where it significantly improves machinability and tool life. This material is essential for manufacturers in the metallurgical, ceramics, and specialty chemical industries seeking to enhance material performance and production efficiency.

Application

• Free-Machining Steel Additive: A key component in resulfurized steels (e.g., 12L14) to form inclusions that act as chip breakers, dramatically improving machinability.
• Solid Lubricant: Used in high-temperature and high-load bearing applications where traditional lubricants fail, such as in powder metallurgy parts.
• Alloying Agent: Incorporated into various ferrous and non-ferrous alloys to modify mechanical properties like strength and wear resistance.
• Ceramic and Pigment Precursor: Serves as a starting material for the synthesis of manganese-based ceramics and certain inorganic pigments.
• Chemical Synthesis: Employed as a source of manganese and sulfide ions in laboratory and industrial chemical processes.
• Battery Material Research: Investigated for potential use in electrode materials for next-generation energy storage systems.

Basic Information

Product Name	Manganese Sulfide
CAS No.	12687-82-0
Molecular Formula	MnS
Molecular Weight	87.00 g/mol
Synonyms	Manganese(II) sulfide; Manganese monosulfide; Alabandite (mineral form); Manganese sulfide (MnS); Manganese sulphide; Manganese(2+) sulfide; Manganeseous sulfide
EINECS	235-776-5

Quality Control

Our Manganese Sulfide is produced under stringent quality management protocols to ensure batch-to-batch consistency and compliance with industrial specifications. We provide comprehensive Certificates of Analysis (COA) for every shipment, detailing key parameters such as purity, particle size distribution, and metallic impurity content. Our quality commitment aligns with ISO 9001 principles, and we can support customer-specific qualification requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept away from strong acids and oxidizing agents to prevent decomposition.

Specification

Item	Specification
Appearance	Green to brown powder or lumps
Identification (IR/XRD)	Conforms to standard
Assay (MnS)	≥ 99.0%
Particle Size (D50)	Contact for details
Iron (Fe)	≤ 0.05%
Lead (Pb)	≤ 0.005%
Loss on Drying	≤ 1.0%

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