TUNGSTEN SULFIDE
- CAS No.
- 12138-09-9
- Chemical Name:
- TUNGSTEN SULFIDE
- Synonyms
- TUNGSTEN DISULFIDE;Tungsten Disulfide Nanopowder;EASCHEM;Tungsten Sulde;powder, 2 Tungsten sulfid;Wolframdisulfid;TUNGSTEN SULFIDE;ungstendisulfide;WS2 powder 0.88μm
- CBNumber:
- CB9239043
- Molecular Formula:
- S2W
- Molecular Weight:
- 247.97
- MOL File:
- 12138-09-9.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/8/28 13:53:27
| Melting point | 1480 °C | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Density | 7.5 g/mL at 25 °C(lit.) | ||||||||||||||
| RTECS | YO7716000 | ||||||||||||||
| solubility | insoluble in H2O, HCl, alkaline solutions | ||||||||||||||
| form | powder | ||||||||||||||
| color | Dark gray | ||||||||||||||
| Specific Gravity | 7.5 | ||||||||||||||
| Water Solubility | Slightly soluble in water. | ||||||||||||||
| Crystal Structure | MoS2 type | ||||||||||||||
| crystal system | Six sides | ||||||||||||||
| Space group | P63/mmc | ||||||||||||||
| Lattice constant |
|
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| Exposure limits |
ACGIH: TWA 3 mg/m3 NIOSH: TWA 5 mg/m3; STEL 10 mg/m3 |
||||||||||||||
| CAS DataBase Reference | 12138-09-9(CAS DataBase Reference) | ||||||||||||||
| EPA Substance Registry System | Tungsten sulfide (WS2) (12138-09-9) | ||||||||||||||
| Bandgap | 1.4 - 2.01 eV | ||||||||||||||
| Electronic properties | 2D semiconductor |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P305+P351+P338 | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-37/39 | |||||||||
| WGK Germany | - | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 28291900 | |||||||||
| NFPA 704 |
|
TUNGSTEN SULFIDE price More Price(15)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 914290 | Tungsten disulfide quantum dots | 12138-09-9 | 20ML | ₹14115.8 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 914290 | Tungsten disulfide quantum dots | 12138-09-9 | 50ML | ₹34336.9 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 901474 | Tungsten sulfide single crystalline monolayer flakes on sapphire | 12138-09-9 | 1EA | ₹26060 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 790583 | Tungsten(IV) sulfide nanopowder, 90?nm avg. part. size (SEM), 99% trace metals basis | 12138-09-9 | 5G | ₹8670.83 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 243639 | Tungsten(IV) sulfide powder, 2?μm, 99% | 12138-09-9 | 50G | ₹7804.83 | 2022-06-14 | Buy |
TUNGSTEN SULFIDE Chemical Properties,Uses,Production
Description
Few-layer?tungsten disulfide (WS2) film has a 2D-layered structure with a narrow indirect bandgap of of 1.35 eV. In contrast, the monolayer film possesses a direct bandgap of 2.1 eV.
Preparation
Synthetic?- Chemical Vapour Transport (CVT)
Application
Due to its distinctive electron configuration and high specific surface area, few-layer tungsten disulfide nanosheets have potential applications in electrodes and energy storage devices, supercapacitors, and photoelectrochemical cells as a catalyst for hydrogen evolution reactions (HERs). With?tunable electromagnetic absorption, it has practical applications?against electromagnetic pollution. WS2?is also a great potential candidate in photothermal therapy for the ablation of cancer cells, when NIR light is absorbed and converted into heat.
Chemical Properties
Grayish-black solid. Mp above 1480C, can lubricate at temperatures above 2400F (1316C). Attacked by fluorine and hot sulfuric and hydrogen fluoride.
Uses
Tungsten sulfide is used as a component of catalysts for hydrotreating of crude oil, hydrodesulfurization and hydrodenitrification reactions. It finds application as solid-state secondary lithium battery cathodes and other electrochemical devices. It is found that it forms inorganic nanotubes, which is better reinforcing agents than carbon nanotubes. Tungsten sulfide addition to epoxy resin improves adhesion, fracture toughness and strain energy release rate.
TUNGSTEN SULFIDE Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| GLR Innovations | +91 9891111994 | New Delhi, India | 4542 | 58 | Inquiry |
| Sajan Overseas Pvt Ltd | +91-9825074205 +91-9825074205 | Gujarat, India | 38 | 58 | Inquiry |
| CHEMSWORTH | +91-261-2397244 | New Delhi, India | 6707 | 30 | Inquiry |
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5873 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
| Sisco Research Laboratories Pvt. Ltd. | +91-22-4268 5800 | Mumbai, India | 4317 | 58 | Inquiry |
| Triveni chemicals | 08048762458 | New Delhi, India | 6093 | 58 | Inquiry |
| Aritech Chemazone Private Limited | +91-9034345475 | Punjab, India | 684 | 58 | Inquiry |
| Y2tion Enterprises | 08069033771Ext 958 | Hyderabad, India | 6 | 58 | Inquiry |
| Rare Earth (India) Unit Of Vijay Commercial House | 08046072837 | Mumbai, India | 32 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| GLR Innovations | 58 |
| Sajan Overseas Pvt Ltd | 58 |
| CHEMSWORTH | 30 |
| Otto Chemie Pvt. Ltd. | 58 |
| Alfa Aesar | 58 |
| Sisco Research Laboratories Pvt. Ltd. | 58 |
| Triveni chemicals | 58 |
| Aritech Chemazone Private Limited | 58 |
| Y2tion Enterprises | 58 |
| Rare Earth (India) Unit Of Vijay Commercial House | 58 |
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