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243647

Sigma-Aldrich

Molybdenum disilicide

powder, ≥99% trace metals basis

Synonym(s):

Molybdenum silicide

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About This Item

Linear Formula:
MoSi2
CAS Number:
12136-78-6
Molecular Weight:
152.11
EC Number:
235-231-8
MDL number:
MFCD00151535
UNSPSC Code:
12352103
PubChem Substance ID:
24854627
NACRES:
NA.23

Assay

≥99% trace metals basis

form

powder

mp

1870-2030 °C (lit.)

density

6.31 g/mL at 25 °C (lit.)

SMILES string

[Mo++].[Si-]#[Si-]

InChI

1S/Mo.Si2/c;1-2/q+2;-2

InChI key

OVVBPJHTRZEJHC-UHFFFAOYSA-N

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General description

Molybdenum disilicide exhibits thermal stability, excellent oxidation resistance, and good electrical conductivity. The high melting point of 1870-2030 °C suggests it can withstand extremely high temperatures without undergoing phase changes ordegradation. Owing to its exceptional properties it is widely explored in the field of heating elements, furnaces,and aerospace components. High purity of ≥99% trace metals basis facilitates its use in electrode materials for Lithium oxide batteries. It is also utilized as an efficient cocatalyst for solar hydrogen production.

Application

  • Single-Crystal MoO3 Micrometer and Millimeter Belts Prepared from Discarded Molybdenum Disilicide Heating Elements.: This study explores the utilization of discarded molybdenum disilicide heating elements to synthesize single-crystal MoO3 belts. These materials exhibit high thermal stability and potential applications in high-temperature oxidation resistance and energy storage devices (Hou et al., 2018).
  • Highly Concentrated Si1-xCx Alloy with an Ordered Superstructure.: The research investigates Si-C alloys with ordered superstructures, highlighting their potential as high-temperature semiconductors. This material′s high thermal resistance and electronic properties make it suitable for advanced semiconductor applications (Qin et al., 2003).

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Articles

Self-Propagating Reactions Induced by Mechanical Alloying

Mechanical alloying is a “brute force” method of affecting alloying and chemical reactions. The mixture of reactant powders and several balls are placed in the milling jar of a high-energy ball mill, for example, a shaker mill or a planetary mill.

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