Silicon tetrachloride
Silicon tetrachloride or tetrachlorosilane is the inorganic compound with the formula SiCl4. It is a colorless volatile liquid that fumes in air. It is used to produce high purity silicon and silica for commercial applications. It is a part of the chlorosilane family.
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| Names | |||
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| IUPAC name
Tetrachlorosilane | |||
| Other names
Silicon tetrachloride Tetrachlorosilane | |||
| Identifiers | |||
3D model (JSmol) |
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| ChemSpider | |||
| ECHA InfoCard | 100.030.037 | ||
| EC Number |
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PubChem CID |
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| RTECS number |
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| UNII | |||
| UN number | 1818 | ||
CompTox Dashboard (EPA) |
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| Properties | |||
| SiCl4 | |||
| Molar mass | 169.90 g/mol | ||
| Appearance | Colourless liquid | ||
| Density | 1.483 g/cm3 | ||
| Melting point | −68.74 °C (−91.73 °F; 204.41 K) | ||
| Boiling point | 57.65 °C (135.77 °F; 330.80 K) | ||
| Reacts to form silica | |||
| Solubility | soluble in benzene, toluene, chloroform, ether | ||
| Vapor pressure | 25.9 kPa at 20 °C | ||
| −88.3·10−6 cm3/mol | |||
| Structure | |||
| Tetrahedral | |||
| 4 | |||
| Thermochemistry | |||
Std molar entropy (S⦵298) |
240 J·mol−1·K−1 | ||
Std enthalpy of formation (ΔfH⦵298) |
−687 kJ·mol−1 | ||
| Hazards | |||
| GHS labelling: | |||
| Warning | |||
| H315, H319, H335 | |||
| P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501 | |||
| NFPA 704 (fire diamond) | |||
| Safety data sheet (SDS) | ICSC 0574 MSDS | ||
| Related compounds | |||
Other anions |
Silicon tetrafluoride Silicon tetrabromide Silicon tetraiodide | ||
Other cations |
Carbon tetrachloride Germanium tetrachloride Tin(IV) chloride Titanium tetrachloride | ||
Related chlorosilanes |
Chlorosilane Dichlorosilane Trichlorosilane | ||
| Supplementary data page | |||
| Silicon tetrachloride (data page) | |||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |||
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