12034-80-9
niobium disilicide
CAS: 12034-80-9
Molecular Formula: NbSi2
12034-80-9 - Names and Identifiers
| Name | niobium disilicide |
| Synonyms | NIOBIUM SILICIDE Niobium silicide NIOBIUM DISILICIDE COLUMBIUM SILICIDE niobium disilicide Niobium disilicide niobiumsilicide(nbsi2) Niobium silicide (NbSi2) NIOBIUM SILICIDE -325 MESH bis(λ2-silanylidene)niobium |
| CAS | 12034-80-9 |
| EINECS | 234-812-3 |
| InChI | InChI=1/Nb.2Si/rNbSi2/c2-1-3 |
12034-80-9 - Physico-chemical Properties
| Molecular Formula | NbSi2 |
| Molar Mass | 149.08 |
| Density | 5.7 |
| Melting Point | 1940 °C |
| Water Solubility | Insoluble in water. |
| Appearance | Powder |
| Storage Condition | Room Temprature |
12034-80-9 - Risk and Safety
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| TSCA | Yes |
12034-80-9 - Nature
Open Data Verified Data
is gray hexagonal crystal. The relative density is 5.7. The lattice constant is 0. 4863nm,C = 0. 6604nm. Melting point 1950 ℃, micro-Hardness 10. 3GPa(1050kg/mm2), Vickers hardness 5. 88~6.88GPA (600 ~ 700kg/mm2), conductivity 50.4 × 10-4 S/m, thermal expansion coefficient 7.3 × 10-6. C 1. Insoluble in water, concentrated hydrochloric acid, concentrated sulfuric acid, soluble in hydrofluoric acid and sulfuric acid mixed solution.
Last Update：2025-06-10 22:55:16
12034-80-9 - Preparation Method
Open Data Verified Data
with metal niobium and silicon as raw materials, the metal niobium and metal silicon are crushed, mixed well, put into a graphite furnace, gradually heated and raised, and when the temperature reaches 1000 ℃, then, hydrogen gas was introduced to raise the temperature to 1400-1900 ° C. And the reaction was continued to obtain niobium silicide. Niobium pentoxide and silicon metal may also be placed in a reduction furnace and reduced at 1400 ° C. For more than 30min to produce niobium silicide.
Last Update：2025-06-10 22:55:16
12034-80-9 - Application
Open Data Verified Data
It can be made into a solid solution with zirconium dioxide, molybdenum dioxide and tungsten trisilate, and used as a fine ceramic raw material.
Last Update：2025-08-19 16:24:40
12034-80-9 - Reference Information
| crystal structure | Hexagonal |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
Last Update：2024-04-10 22:30:23
Supplier List
Featured ProductsSpot supply
Product Name: NIOBIUM SILICIDE Visit Supplier Webpage Request for quotationCAS: 12034-80-9
Tel: +86-18821248368
Email: Int06@meryer.com
Mobile: +86-18821248368
QQ: 495145328
WhatsApp: +86-18821248368
Spot supply
Product Name: NIOBIUM SILICIDE Request for quotationCAS: 12034-80-9
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Spot supply
Product Name: NIOBIUM SILICIDE Visit Supplier Webpage Request for quotationCAS: 12034-80-9
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Product Name: NIOBIUM SILICIDE Visit Supplier Webpage Request for quotation
CAS: 12034-80-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
CAS: 12034-80-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Featured ProductsSpot supply
Product Name: NIOBIUM SILICIDE Visit Supplier Webpage Request for quotationCAS: 12034-80-9
Tel: +86-18821248368
Email: Int06@meryer.com
Mobile: +86-18821248368
QQ: 495145328
WhatsApp: +86-18821248368
Spot supply
Product Name: NIOBIUM SILICIDE Request for quotationCAS: 12034-80-9
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Spot supply
Product Name: NIOBIUM SILICIDE Visit Supplier Webpage Request for quotationCAS: 12034-80-9
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Product Name: NIOBIUM SILICIDE Visit Supplier Webpage Request for quotation
CAS: 12034-80-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
CAS: 12034-80-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
View History