At a Glance
Material Family
Specialty Additives
Record Type
Mineral
Primary Role
Lubrication · Slip / Release
Functional Roles
Industries Served
Applications & Use Cases
- ▸ Used as a dry-film solid lubricant in greases, anti-seize pastes, and bonded coatings where its low coefficient of friction and lamellar structure provide boundary lubrication under high load, vacuum, and extreme-temperature conditions.
- ▸ Added to engine oils, gear oils, and metalworking fluids as a friction-modifier and anti-wear additive to reduce scuffing and extend component life.
- ▸ Applied as a burnished or sprayed dry-film lubricant on threaded fasteners, bearings, gears, and forming dies in industrial manufacturing and aerospace assembly.
- ▸ Incorporated into self-lubricating polymer and composite parts (PTFE, nylon, PEEK) to lower wear and friction in dry-running mechanical components.
- ▸ Sourced as molybdenite mineral powder for downstream molybdenum chemistry and as a black functional pigment (C.I. 77770) in specialty coatings.
Physical Properties
Appearance
Black to dark gray crystalline powder
Crystal Structure
Hexagonal (molybdenite)
Density
5.06 g/cm3
Melting Point
1185 C (decomposes)
Mohs Hardness
1.0-1.5
Water Solubility
Insoluble
Coefficient of Friction
0.03-0.06 (dry film)
Safety & Handling
Full SDS available on request
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
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Chemical Identity
CAS Number
1317-33-5
Molecular Formula
MoS2
Molecular Weight
160.1 g/mol
IUPAC Name
bis(sulfanylidene)molybdenum
PubChem CID
InChI Key
CWQXQMHSOZUFJS-UHFFFAOYSA-N
Synonyms & Trade Names
Full Description
Regulatory & registration requirements
- TSCA (US):
- REACH (EU): Not determined from public registry
- EC number: 215-263-9
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
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Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.