215120

Silicon tetrachloride

99%

• Synonym(s): STC, Tetrachlorosilane
• Linear Formula: SiCl₄
• CAS Number: 10026-04-7
• Molecular Weight: 169.90
• EC Number: 233-054-0
• MDL number: MFCD00011229
• UNSPSC Code: 12352103
• PubChem Substance ID: 24852870
• NACRES: NA.23

Properties

• vapor density: 5.86 (vs air)
• vapor pressure: 420 mmHg ( 37.7 °C)
• Assay: 99%
• form: liquid
• reaction suitability: core: silicon
• bp: 57.6 °C (lit.)
• mp: −70 °C (lit.)
• density: 1.483 g/mL at 25 °C (lit.)
• SMILES string: Cl[Si](Cl)(Cl)Cl
• InChI: 1S/Cl4Si/c1-5(2,3)4
• InChI key: FDNAPBUWERUEDA-UHFFFAOYSA-N

Description

General description

Silicon tetrachloride (SiCl₄) is an inorganic compound. It′s crystal structure is similar to that of carbon tetrachloride (CCl₄). SiCl₄ can be synthesized by the chlorination of silicon compounds (e.g. Mg₂Si, SiC, SiO₂/C).[1]

Application

SiCl₄ may be used;

• in the preparation of high purity silicon, high purity silicon derived from silicon tetrachloride may find major applications in the semiconductors industry and in photovoltaic cells.[1]
• to dealuminate zeolite,[2] mordenite.[3]
• as a coupling agent for the synthesis of amine from carboxylic acid and an amide.[4]
• in the synthesis of nanosilica.[5]

Packaging

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Safety Information

• Pictograms: GHS06,GHS05
• Signal Word: Danger
• Hazard Statements: H301 + H331,H314,H335
• Precautionary Statements: P261 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1A - STOT SE 3
• Target Organs: Respiratory system
• Supplementary Hazards: EUH014,EUH071
• Storage Class Code: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves