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Molybdenum disulfide

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Products Intro: Product Name:MOLYBDENUM(IV) SULFIDE
CAS:1317-33-5
Purity:99% Package:100g,500g,1KG,10KG,100KG
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Purity:99% Package:500G;1KG;5KG;25KG
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Products Intro: Product Name:MOLYBDENUM(IV) SULFIDE
CAS:1317-33-5
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Products Intro: Product Name:MOLYBDENUM(IV)SULFIDE
CAS:1317-33-5
Molybdenum disulfide Basic information
Description
Product Name:Molybdenum disulfide
Synonyms:dag325;disulfuredemolybdene;molybdenumsulfide(mos2);MOLYBDENUM(IV) SULFIDE POWDER EXTRA PU&;MOLYBDENUM(IV) SULFIDE, POWDER, <2 MICRO N, 99%;MOLYBDENUM(IV) SULFIDE, POWDER;MolybdenumDisulphidePowder;Molybdenum(IV) sulfide, 98.50%
CAS:1317-33-5
MF:MoS2
MW:160.07
EINECS:215-263-9
Product Categories:Inorganics;metal chalcogenides;-;agent
Mol File:1317-33-5.mol
Molybdenum disulfide Structure
Molybdenum disulfide Chemical Properties
Melting point 2375 °C
density 5.06 g/mL at 25 °C(lit.)
form powder
color Gray to dark gray or black
Specific Gravity4.8
Water Solubility Soluble in hot sulfuric acid, and aquaregia. Insoluble in water, concentrated sulfuric acid and dilute acid.
Merck 14,6236
Boiling point 100°C (water)
Stability:Stable. Incompatible with oxidizing agents, acids.
CAS DataBase Reference1317-33-5(CAS DataBase Reference)
Safety Information
Safety Statements 22-24/25
WGK Germany -
RTECS QA4697000
TSCA Yes
HS Code 28309090
MSDS Information
ProviderLanguage
SigmaAldrich English
ACROS English
ALFA English
Molybdenum disulfide Usage And Synthesis
DescriptionMolybdenum disulfide (MoS2) is the most famous of the single layer transition metal dichalcogenide (TMD) family. MoS2 has been used in bulk for many years as a solid state lubricant, this is due to its low coefficient of friction in addition to its high chemical and thermal stability. All forms of MoS2 have a layered structure, in which a plane of molybdenum atoms is sandwiched by planes of sulfide ions. These three strata form a monolayer of MoS2. Bulk MoS2 consists of stacked monolayers, which are held together by weak van der Waals interactions. Similar to graphite, when MoS2 transitions from a bulk structure to a single layer structure the properties of this material undergo a significant change.
The most striking change that occurs when transitioning from bulk to single layer is the shift in the optoelectronic properties, with the material changing from being an indirect bandgap semiconductor with a bandgap value of approximately 1.3 eV to a direct bandgap semiconductor with a bandgap value of approximately 1.9 eV. Due to the presence of a bandgap in this material there are significantly more uses for MoS2 in comparison to other 2d materials such as graphene.
In recent years, MoS2 has been utilized in flexible electronic applications, promoting more investigation into the elastic properties of this material. Nanoscopic bending tests using AFM cantilever tips were performed on micromechanically exfoliated MoS2 flakes that were deposited on a holey substrate. The yield strength of monolayer flakes was 270 GPa, while the thicker flakes were also stiffer, with a yield strength of 330 GPa. Molecular dynamic simulations found the in-plane yield strength of MoS2 to be 229 GPa, which matches the experimental results within error. Some areas in which MoS2 has already been applied include high on/off ratio field effect transistors due to low leakage currents, memresistors based on layered TMD films, controllable spin and valley polarization, geometric confinement of excitons, tuneable photoluminescence, the electrolysis of water, and photovoltaics/photodetectors.
Chemical Propertiesdark grey or black powder
UsesDry lubricant and lubricant additive. Hydrogenation catalyst.
usesMolybdenum disulfide (MoS2) is one of the most widely used lubricants in space systems.it is a common additive that improves the antiseize properties of wheel bearing grease.Molybdenum disulfide (MoS2) has been used for many years as a solid lubricant because of its interesting friction-reducing properties related to its crystalline structure. MoS2 is a lamellar compound made of a stacking of S-Mo-S layers . In each of them, the molybdenum atom is surrounded by six sulfur atoms located at the top of a trigonal prism. The distance between a molybdenum atom and a sulfur atom is equal to 0.241 nm, whereas the distance between two sulfur atoms from two adjacent layers is equal to 0.349 nm. This characteristic was often used to explain easy cleavage between the layers and therefore the lubricating properties of MoS2.
DefinitionNatural molybdenum sul-fide found in igneous rocks and metallic veins.
HazardToxic material.
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