| Identification | Back Directory | [Name]
MOLYBDENUM SILICIDE | [CAS]
12136-78-6 | [Synonyms]
MOSI2 B
MOSI2 C
MOLYBDENUM SILICIDE
MOLYBDENUM DISILICIDE
Molybdenum disiticide
Molybdenum silicide MoSi2
Molybdenum silicide/ 99.5%
MOLYBDENUM SILICIDE, Mo5Si3
MOLYBDENUM DISILICIDE, 99+%
MOSI2 A MOLYBDENUM SILICIDE
Molybdenum silicide (99+% Mo)
Molybdenum Silicide, -325 Mesh
Erbium (Er) Sputtering Targets
bis(λ^{2}-silanylidene)molybdenum
Molybdenum disilicide powder (MoSi2)
Mo61%min,typically99.5%(metalsbasis)
MOLYBDENUM SILICIDE: 99.5%, -325 MESH
Molybdenum silicide(MoSi2)
MOLYBDENUM SILICIDE ISO 9001：2015 REACH
Molybdenum silicide, 99.5% trace metals basis
MOLYBDENUM DISILICIDE, POWDER, <2 MICRON , 99+%
Molybdenum disilicide, 0.4-5.0 microns (99+%-Mo)
MOSI2 A MOLYBDENUM SILICIDE GRADE A - A PRODUCT OF H.C. STARCK
MOSI2 B MOLYBDENUM SILICIDE GRADE B - A PRODUCT OF H.C. STARCK
MOSI2 C MOLYBDENUM SILICIDE GRADE C - A PRODUCT OF H.C. STARCK
Molybdenum silicide, Mo 61% min, typically 99.5% (metals basis)
Molybdenum disilicide alpha-phase, powder, >=99.8% trace metals basis
Molybdenum silicide sputtering target, 50.8mm (2.0 in.) dia. x 6.35mm (0.250 in.) thick
Molybdenum silicide sputtering target, 76.2mm (3.0 in.) dia. x 6.35mm (0.250 in.) thick
Molybdenum silicide sputtering target, 50.8mm (2.0 in.) dia. x 3.18mm (0.125 in.) thick
Molybdenum silicide sputtering target, 50.8mm (2.0in) dia x 6.35mm (0.250in) thick, 99.5% (metals ba
Molybdenum silicide sputtering target, 50.8mm (2.0in) dia x 3.18mm (0.125in) thick, 99.5% (metals ba
Molybdenum silicide sputtering target, 76.2mm (3.0in) dia x 3.18mm (0.125in) thick, 99.5% (metals basis)
Molybdenum silicide sputtering target, 50.8mm (2.0in) dia x 3.18mm (0.125in) thick, 99.5% (metals basis)
Molybdenum silicide sputtering target, 50.8mm (2.0in) dia x 6.35mm (0.250in) thick, 99.5% (metals basis)
Molybdenum silicide sputtering target, 76.2mm (3.0in) dia x 6.35mm (0.250in) thick, 99.5% (metals basis) | [EINECS(EC#)]
235-231-8 | [Molecular Formula]
MoSi2 | [MDL Number]
MFCD00151535 | [MOL File]
12136-78-6.mol | [Molecular Weight]
152.11 |
| Chemical Properties | Back Directory | [Definition]
A cermet. | [Appearance]
Dark-gray, crystalline powder. Not affected by air upto 1648C. Not attacked by most inorganic acidsincluding aqua regia, but very soluble in hydrofluo-ric and nitric acids. Has high stress-rupture strength. | [Melting point ]
1930°C | [density ]
6.31 g/mL at 25 °C(lit.)
| [solubility ]
insoluble in H2O; soluble in HF | [form ]
powder
| [color ]
Dark gray | [Specific Gravity]
6.31 | [Resistivity]
21.5 (ρ/μΩ.cm) | [Water Solubility ]
Insoluble in acids and aqua regia, however, it is soluble in HF and HNO{3}Soluble in nitric acid and hydrofluoric acid. Insoluble in water most acids. | [Crystal Structure]
Tetragonal | [Exposure limits]
ACGIH: TWA 10 mg/m3; TWA 3 mg/m3
NIOSH: IDLH 5000 mg/m3 | [Uses]
Molybdenum di-silicide (MoSi2) can be considered as an electrically conducting ceramic with primary use in heating elements operating at temperatures above 1,500℃ in air. It is also considered as a material for very high temperature structural applications. | [EPA Substance Registry System]
Molybdenum silicide (MoSi2) (12136-78-6) |
| Hazard Information | Back Directory | [Chemical Properties]
Dark-gray, crystalline powder. Not affected by air upto 1648C. Not attacked by most inorganic acidsincluding aqua regia, but very soluble in hydrofluo-ric and nitric acids. Has high stress-rupture strength. | [Hazard]
Toxic material. | [Physical properties]
The compound is thermally
stable in air up to 1000°C.
Corrosion resistant to molten
metals such as Zn, Pd, Ag, Bi,
and Rb. Corroded by liquid
metals Mg, Al, Si, V, Cr, Mn, Fe,
Ni, Cu, Mo, and Ce. | [Application]
Molybdenum disilicide (MoSi2) is a ceramic material with excellent high-temperature oxidation resistance and corrosion resistance. It can be used as a substrate material in the fabrication of thermophotovoltaics. MoSi2 can also be used as a protective coating on carbon-carbon composites for potential applications in aerospace and thermonuclear fusion. | [Preparation]
Molybdenum disilicide is a promising candidate material for high temperature structural applications. Molybdenum silicide is produced in much the same way as ferromolybdenum. A typical mix for the production of molybdenum silicide is 1,000pounds of molybdenum in oxide, 259 pounds of aluminum, 760 pounds of 90-percent ferrosilicon, 166 pounds of 50-percent ferro-silicon, 160 pounds of lime, and 50 pounds of high-grade fluorspar. | [General Description]
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here. | [Flammability and Explosibility]
Notclassified | [Industrial uses]
High-temperature silicides are a new class of materials with potential applications in the temperature range 1200 to 1600 C.The silicide that seems most promising is molybdenum disilicide (MoSi2) because of its high melting temperature (2200 C) and excellent oxidation resistance. It has a tetragonal crystal structure. A major problem is its absence of ductility at temperatures up to 1000 C. It also has poor high-temperature strength due to the presence of a grain boundary silicon-rich phase that may become viscous at very high temperatures. Recent research has shown that this problem may be solved by the addition of carbon to the material. |
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