ChemicalBook--->CAS DataBase List--->12039-79-1

12039-79-1

12039-79-1 Structure

12039-79-1 Structure
IdentificationBack Directory
[Name]

TANTALUM SILICIDE
[CAS]

12039-79-1
[Synonyms]

TANTALUM SILICIDE
TANTALUM DISILICIDE
TANTALUM (II) SILICIDE
tantalumsilicide(tasi2)
TANTALUM SILICIDE: 99.9%
Tantalum disilicide (TaSi2)
Tantalum silicide (99.5%-Ta)
TANTALUM SILICIDE -230 MESH
Tantalum disilicide powder (TaSi2)
TANTALUM SILICIDE ISO 9001:2015 REACH
Nickel Boron (Ni-B) Alloy Sputtering Targets
Tantalumsilicidemeshgraypowderavgmicronsorle
[EINECS(EC#)]

234-902-2
[Molecular Formula]

Si2Ta
[MDL Number]

MFCD00049564
[MOL File]

12039-79-1.mol
[Molecular Weight]

237.12
Chemical PropertiesBack Directory
[Melting point ]

2200°C
[density ]

9,14 g/cm3
[form ]

Powder
[color ]

gray
[Specific Gravity]

9.14
[Resistivity]

8.5 (ρ/μΩ.cm)
[Water Solubility ]

Insoluble in water.
[Thermal Conductivity]

37.028 W/(m·K)
[Crystal Structure]

Hexagonal
[Hydrolytic Sensitivity]

1: no significant reaction with aqueous systems
[Stability:]

Corroded by molten Ni
[CAS DataBase Reference]

12039-79-1
[EPA Substance Registry System]

Tantalum silicide (TaSi2) (12039-79-1)
Hazard InformationBack Directory
[Chemical Properties]

gray powder(s); used in the form of a 99.5%–99.95% pure material as a sputtering target in the fabrication of integrated circuits; there is also the compound Ta5Si3, 12067-56-0 [STR93] [CER91]
[Uses]

Tantalum disilicide is used in the preparation of ceramics, which finds application in the thermal protection systems.
[Synthesis]

The TaSi2 powder preparation method includes the following steps: -500 mesh silicon powder and -300 mesh tantalum powder are weighed according to the stoichiometric ratio of TaSi2. Here, in order to obtain a high purity product, high purity silicon powder
Safety DataBack Directory
[Safety Statements ]

22
[WGK Germany ]

3
[TSCA ]

Yes
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