Atomfair Molybdenum Sulfide (MoS₂) Powder, 99.9% Purity, -1250 Mesh
Product Description
Atomfair Molybdenum Sulfide (MoS2) Powder is supplied as a powder with 99.9% purity and -1250 mesh. It is intended for dry-lubricant and layered-semiconductor materials research.
Technical Specifications
| Parameter | Specification / Available Values |
|---|---|
| Product | Molybdenum Sulfide (MoS2) Powder |
| Chemical Formula | MoS2 |
| CAS Number | 1317-33-5 |
| Purity | 99.9% |
| Particle Size / Mesh Specification | -1250 mesh |
| Physical State | Powder |
| Appearance | Black or lead-gray powder |
| Density | 5.06 g/cm³ |
| Melting Point | 2375 °C |
| Water Solubility | Insoluble |
| Band Gap | Approximately 1.23 eV in bulk and 1.8 eV for a monolayer |
Customization & Ordering
Provide the required quantity, packaging and delivery timeline for quotation review. Available pricing, minimum order quantity and lead time are confirmed during quotation.
Key Features and Advantages
- Defined MoS2 sulfide composition with CAS 1317-33-5.
- Supplied at 99.9% purity and -1250 mesh.
- Material characteristics include black or lead-gray powder appearance and a band gap of Approximately 1.23 eV in bulk and 1.8 eV for a monolayer.
APPLICATION SCOPE: dry-lubricant and layered-semiconductor materials research.
DOCUMENTATION: COA and SDS can be provided upon request for batch-specific confirmation.
TAILORED SOLUTIONS FOR RESEARCH
For specification review, documentation support, or quotation assistance, contact our technical sales team.
How does the band gap of Atomfair MoS₂ powder change from bulk to monolayer, and what does this mean for semiconductor research?
The band gap shifts from approximately 1.23 eV in bulk to 1.8 eV for a monolayer, as stated in the product specifications. This direct-to-indirect gap transition is critical for researchers designing 2D electronic or optoelectronic devices, as the monolayer form offers a wider band gap suitable for transistor and photodetector applications.
Can this MoS₂ powder be used directly as a dry lubricant, or are additional processing steps required?
The powder is supplied at -1250 mesh and 99.9% purity, making it suitable for direct use in dry-lubricant research. However, for practical lubrication applications, it may require dispersion in a carrier medium or deposition onto surfaces, as the product is intended for research purposes and not as a finished lubricant formulation.
What are the handling and storage requirements for Atomfair MoS₂ powder given its insolubility and high melting point?
The powder is insoluble in water and has a melting point of 2375 °C, indicating thermal stability under standard laboratory conditions. It should be stored in a dry, sealed container to prevent moisture absorption or contamination, and handled with standard PPE to avoid inhalation of fine particles, as typical for micronized powders.
Atomfair MoS2 powder at 99.9% purity and -1250 mesh is a well-defined dry-lubricant and layered-semiconductor research feedstock; its bulk band gap of ~1.23 eV and monolayer value of ~1.8 eV support thickness-dependent studies, while water insolubility and monolayer preparation requirements should be factored into processing plans.
Positive
- Defined 99.9% MoS2 composition: Supplied with CAS 1317-33-5 at 99.9% purity and -1250 mesh, providing a consistent feedstock for reproducible dry-lubricant and layered-semiconductor materials research.
- Thickness-dependent electronic properties: The stated band gap of approximately 1.23 eV in bulk and 1.8 eV for a monolayer enables study of layer-dependent semiconductor behavior.
Trade-offs
- Water-insoluble powder processing: The material is insoluble in water, so aqueous dispersion or slurry-based process routes are not directly available for this MoS2 powder.
- Monolayer behavior requires exfoliation: The 1.8 eV monolayer band gap is not a property of the as-supplied powder; users must implement layer-thickness control to access monolayer electronic behavior.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).




