Tungsten silicide, 99.5% (metals basis), Thermo Scientific Chemicals

Product Code	Brand	Quantity
11377257	Thermo Scientific Alfa Aesar 011551.09	10 g
11367257	Thermo Scientific Alfa Aesar 011551.18	50 g

Description

Tungsten silicide is used in microelectronics as a contact material. It is also used as a shunt over polysilicon lines to increase their conductivity and increase signal speed. Further, it acts as a barrier layer between silicon and other metals. In addition to this, it is used in microelectro mechanical systems and for oxidation-resistant coatings. It is also employed as a replacement for earlier tungsten films.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Chemical Identifiers

• CAS: 12039-88-2
• Molecular Weight (g/mol): 240.01
• InChI Key: WQJQOUPTWCFRMM-UHFFFAOYSA-N
• PubChem CID: 16212546
• SMILES: [Si]#[W]#[Si]

• Molecular Formula: Si2W
• MDL Number: MFCD00049704
• Synonym: tungsten disilicide, tungsten-silicide, tungsten silicide wsi2, tungsten silicide, w5si3
• IUPAC Name: bis($l^{3}-silanylidyne)tungsten

Specifications

• Melting Point: 2165°C
• Physical Form: Powder
• MDL Number: MFCD00049704
• Solubility Information: Insoluble in water.
• SMILES: [Si]#[W]#[Si]
• Molecular Weight (g/mol): 240.01
• Formula Weight: 240.02
• Odor: Odorless
• Chemical Name or Material: Tungsten silicide

• CAS: 12039-88-2
• Molecular Formula: Si2W
• Synonym: tungsten disilicide, tungsten-silicide, tungsten silicide wsi2, tungsten silicide, w5si3
• InChI Key: WQJQOUPTWCFRMM-UHFFFAOYSA-N
• IUPAC Name: bis($l^{3}-silanylidyne)tungsten
• PubChem CID: 16212546
• Percent Purity: 99.5%
• Assay: (metals basis)

Safety and Handling

missing translation for 'einecsNumber' : 234-909-0

missing translation for 'tsca' : Yes

Recommended Storage : Ambient temperatures

RUO – Research Use Only