zirconium disilicide
zirconium disilicide
CAS: 12039-90-6
Molecular Formula: Si2Zr
zirconium disilicide - Names and Identifiers
| Name | zirconium disilicide |
| Synonyms | ZIRCONIUM SILICIDE zirconium disilicide Zirconium disilicide ZIRCONIUM DISILICIDE zirconium(+4) cation ZIRCONIUM SILICIDE, POWDER Zirconium silicide (ZrSi2) silicon(-2) dihydride anion ZIRCONIUM SILICIDE, -325 MESH |
| CAS | 12039-90-6 |
| EINECS | 234-911-1 |
| InChI | InChI=1/2H2Si.Zr/h2*1H2;/q2*-2;+4 |
zirconium disilicide - Physico-chemical Properties
| Molecular Formula | Si2Zr |
| Molar Mass | 147.4 |
| Density | 4.88g/mLat 25°C(lit.) |
| Melting Point | 1790°C |
| Water Solubility | Insoluble in water. It is insoluble in acids, alkali and aqua regia. |
| Appearance | Powder |
| Specific Gravity | 4.88 |
| Color | Gray |
| Exposure Limit | ACGIH: TWA 5 mg/m3; STEL 10 mg/m3NIOSH: IDLH 25 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3 |
| Storage Condition | Room Temprature |
zirconium disilicide - Risk and Safety
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| TSCA | Yes |
zirconium disilicide - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Introduction | As a zirconium-silicon intermetallic compound, zirconium silicide is a kind of high-temperature ceramic materials with high hardness, high melting point, high conductivity, high thermal conductivity and excellent thermal shock resistance. In view of the superior physical and chemical properties of zirconium-silicon intermetallic compounds, it is a structural material or a new engineering material that can be applied to high-temperature corrosive media. |
| properties | zirconium silicide is a shiny crystal of steel gray oblique square system with 4.8822 relative density. Zirconium silicide is insoluble in water, inorganic acid and aqua regia, but soluble in hydrofluoric acid. |
| preparation method | zirconium silicide can be obtained by reacting a mixture of zirconium powder and silicon powder at high temperature under isolated air. |
| synthesis method | a method for preparing zirconium silicide nanomaterials includes the following steps:(1) adding 5mmol zirconium dioxide, 5mmol silicon powder and 50mmol metal lithium to a 20 ml stainless steel autoclave and closing it, then placing the autoclave into an electric furnace capable of programmed temperature rise, and setting the heating rate of the electric furnace to 10°C per minute, the electric furnace is heated to 600 ℃, and the reaction is maintained for 40 hours after the heating is completed. After the reaction, it is naturally cooled to room temperature, and then the autoclave is opened to take out the product (black deposit);(2) The reaction product is cleaned with distilled water first, and then washed with dilute hydrochloric acid and absolute ethanol respectively, the washed product is filtered, and then dried in a vacuum drying oven at 60 ℃ for 4 hours to obtain zirconium silicide nanomaterials, according to the quality of the prepared zirconium silicide nanomaterials and the quality of the raw material zirconium dioxide used, the yield of zirconium silicide is 85%. The above reaction process is as follows: ZrO2 Si 4Li = ZrSi 2Li2O |
Last Update：2024-04-10 22:29:15
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