TANTALUM SILICIDE
- Product Name
- TANTALUM SILICIDE
- CAS No.
- 12039-79-1
- Chemical Name
- TANTALUM SILICIDE
- Synonyms
- TANTALUM SILICIDE;TANTALUM DISILICIDE;tantalum(IV) silicide;TANTALUM (II) SILICIDE;tantalumsilicide(tasi2);TANTALUM SILICIDE: 99.9%;Tantalum disilicide powder;Tantalum disilicide (TaSi2);Tantalum silicide (99.5%-Ta);TANTALUM SILICIDE -230 MESH
- CBNumber
- CB1174797
- Molecular Formula
- Si2Ta
- Formula Weight
- 237.12
- MOL File
- 12039-79-1.mol
TANTALUM SILICIDE Property
- Melting point:
- 2200°C
- Density
- 9,14 g/cm3
- form
- Powder
- Specific Gravity
- 9.14
- color
- gray
- Resistivity
- 8.5 (ρ/μΩ.cm)
- Water Solubility
- Insoluble in water.
- Hydrolytic Sensitivity
- 1: no significant reaction with aqueous systems
- Crystal Structure
- Hexagonal
- Stability:
- Corroded by molten Ni
- CAS DataBase Reference
- 12039-79-1
- EPA Substance Registry System
- Tantalum silicide (TaSi2) (12039-79-1)
Safety
- Safety Statements
- 22
- WGK Germany
- 3
- TSCA
- TSCA listed
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 93-7310
- Product name
- Tantalum silicide (99.5%-Ta)
- Packaging
- 5g
- Price
- $71
- Updated
- 2024/03/01
- Product number
- 93-7310
- Product name
- Tantalum silicide (99.5%-Ta)
- Packaging
- 25g
- Price
- $282
- Updated
- 2024/03/01
- Product number
- ING0005393
- Product name
- TANTALUM SILICIDE
- Purity
- 95.00%
- Packaging
- 5G
- Price
- $844.07
- Updated
- 2021/12/16
- Product number
- ING0005393
- Product name
- TANTALUM SILICIDE
- Purity
- 95.00%
- Packaging
- 25G
- Price
- $1315.84
- Updated
- 2021/12/16
TANTALUM SILICIDE Chemical Properties,Usage,Production
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 and tantalum powder need to be selected, such as 99.95 or 99.99% purity. The choice of -500 mesh silicon powder with -300 mesh tantalum powder is to better mix the silicon and tantalum, so that the tantalum particles are surrounded by the silicon particles, which is conducive to easier contact and reaction between the silicon and tantalum in the later steps of combustion synthesis. The use of stoichiometric matching is to obtain the TaSi2 phase. In the case where both -200 mesh or -300 mesh silicon and tantalum powders are used, it is difficult to obtain a completely single-phase TaSi2 phase powder, and there will always be a small amount of Ta5Si3 phase. The use of smaller particle size raw material powder can make the reaction more complete, but this increases the powder oxygen content, but will hinder the synthesis reaction. Specific steps are as follows: weigh -500 mesh silicon powder 23.6 g and -300 mesh tantalum powder 76.4 g; add NH4Cl powder that accounts for 0.5 g of the weight of silicon powder and tantalum powder; ball-mill the above powder, the ball material ratio of 8:1, ball milling time of 12 hours; the ball-milled powder is loaded into the crucible of silicon carbide, and put on the shaking table and vibration to the relative density of 40%; the crucible containing the powder is loaded into the synthesis furnace After vacuuming, the crucible was filled with argon gas, and the temperature was raised to 650?? at 20?? per minute, and the tantalum silicide synthesis reaction was ignited by tungsten wire energization; after cooling, the final powder product was obtained by crushing with zirconium oxide balls and cans, and all of the products were tantalum silicide phases detected by XRD.
TANTALUM SILICIDE Preparation Products And Raw materials
Raw materials
Preparation Products
TANTALUM SILICIDE Suppliers
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View Lastest Price from TANTALUM SILICIDE manufacturers
- Product
- TANTALUM SILICIDE 12039-79-1
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 500000kg
- Release date
- 2024-10-30
- Product
- TANTALUM SILICIDE 12039-79-1
- Price
- US $40.00/kg
- Min. Order
- 1kg
- Purity
- 0.99
- Supply Ability
- 10 tons
- Release date
- 2023-09-25
- Product
- TANTALUM SILICIDE 12039-79-1
- Price
- US $6.60/KG
- Min. Order
- 1KG
- Purity
- 97%-99%
- Supply Ability
- 1kg-1000kg
- Release date
- 2019-12-25