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| | Zirconium silicide Basic information |
| Product Name: | Zirconium silicide | | Synonyms: | ZIRCONIUM SILICIDE, -325 MESH;99.5%(metalsbasisexcludingHf),Hf2-4%;ZIRCONIUM SILICIDE, 99.5%;ZIRCONIUM SILICIDE, POWDER;Zirconium silicide, 99.5% (metals basis excluding Hf), Hf 2-4%;ZIRCONIUM DISILICIDE;ZIRCONIUM SILICIDE;Zirconium silicide, 99.5% trace metals basis excluding Hf | | CAS: | 12039-90-6 | | MF: | Si2Zr | | MW: | 147.4 | | EINECS: | 234-911-1 | | Product Categories: | Ceramics;Metal and Ceramic Science;Silicides | | Mol File: | 12039-90-6.mol |  |
| | Zirconium silicide Chemical Properties |
| Melting point | 1790°C | | density | 4.88 g/mL at 25 °C(lit.) | | solubility | insoluble in H2O, aqua regia; sHF | | form | Powder | | color | Gray | | Specific Gravity | 4.88 | | Resistivity | 161 (ρ/μΩ.cm) | | Water Solubility | Insoluble in water. It is insoluble in acids, alkali and aqua regia. | | Crystal Structure | Orthorhombic | | Exposure limits | ACGIH: TWA 5 mg/m3; STEL 10 mg/m3
NIOSH: IDLH 25 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3 | | InChI | InChI=1S/Si2.Zr/c1-2;/q-2;+2 | | InChIKey | GCMIRPBNXOROMF-UHFFFAOYSA-N | | SMILES | [Si-]#[Si-].[Zr+2] | | CAS DataBase Reference | 12039-90-6 | | EPA Substance Registry System | Zirconium silicide (ZrSi2) (12039-90-6) |
| Safety Statements | 22-24/25 | | WGK Germany | 3 | | TSCA | TSCA listed |
| | Zirconium silicide Usage And Synthesis |
| Chemical Properties | Gray solid. Soluble in
hydrogen fluoride; insoluble in water and aqua
regia. | | Uses | Zirconium silicide (Zr3Si2) has been identified as promising material for the neutron reflector in a gas cooled reactor. | | Uses | Zirconium silicate is used for manufacturing refractory materials. It is also used in production of some ceramics, enamels, and ceramic glazes. In enamels and glazes it serves as an opacifier. zirconium silicate is as beads for milling and grinding. | | Uses | Coatings resistant to flame or blast impingement,
special alloys. | | Flammability and Explosibility | Not classified | | Synthesis | A method for preparing zirconium silicide nanomaterials, comprising the steps of:
(1) adding 5 mmol of zirconium dioxide, 5 mmol of silicon powder and 50 mmol of lithium metal to a 20 ml stainless steel autoclave and closing it, then placing the autoclave into an electric furnace capable of programmed heating, setting the heating rate of the furnace at 10C per minute, heating the furnace to 600C, maintaining the reaction for 40 hours after the completion of the heating and cooling the reaction naturally to room temperature after the reaction, then opening the autoclave to remove the product (black deposit);
(2) The reaction product was first washed once with distilled water, and then washed once each with dilute hydrochloric acid and anhydrous ethanol, respectively, and the washed product was filtered, and then dried in a vacuum drying oven at 60 for 4 hours to obtain zirconium silicide nanomaterials, and based on the mass of prepared zirconium silicide nanomaterials and the mass of raw material zirconium dioxide used, it was concluded that the yield of zirconium silicide was 85%.
The above reaction process is shown as follows:
ZrO2+Si+4Li = ZrSi+2Li2O
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| | Zirconium silicide Preparation Products And Raw materials |
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