Silane, tetrachloro-

SILICON CHLORIDE was prepared by J?ns Jakob Berzelius in 1823.

Reported in EPA TSCA Inventory.

DOT Classification:  8; Label: Corrosive

The Silane, tetrachloro- with CAS registry number of 10026-04-7 is also known as Siliconchloride. The IUPAC name is Tetrachlorosilane. Its EINECS registry number is 233-054-0. In addition, the formula is Cl₄Si and the molecular weight is 169.89. This chemical is a colourless or light yellow fuming liquid and it reacts violently with water. Besides, it is incompatible with water, acids, bases, alcohols, alkali metals, organics, powdered metals. It is stable at normal temperature and pressure, and it should be sealed in ventilated, cool, dry place away from fire. This chemical is used for the preparation of organic silicon, silicic acid ester, organic silicon oil, high temperature insulation, silicone, silicone rubber. What's more, it also can be used to absorb moisture and create a smokescreen agent.

Physical properties about Silane, tetrachloro- are: (1)ACD/LogP: 2.37; (2)ACD/LogD (pH 5.5): 2.365; (3)ACD/LogD (pH 7.4): 2.365; (4)ACD/BCF (pH 5.5): 36.927; (5)ACD/BCF (pH 7.4): 36.927; (6)Index of Refraction: 1.462; (7)Molar Refractivity: 30.163 cm³; (8)Molar Volume: 109.811 cm³; (9)Surface Tension: 24.811 dyne/cm; (10)Density: 1.547 g/cm³; (11)Enthalpy of Vaporization: 28.7 kJ/mol; (12)Boiling Point: 57.57 °C at 760 mmHg; (13)Vapour Pressure: 229.706 mmHg at 25 °C.

Preparation of Silane, tetrachloro-. Firstly, ferrosilicon is added into chlorination furnace and heated to 300 °C. Crude silicon tetrachloride is obtained by condensation after chlorine is passed into mixture to react. Secondly, crude product is mixed with antimony powder for distillation for 30 minutes. At last, industrial grade product is obtained by collecting the distillate at the temperature of 56-59 °C and high-purity product can be generated by further distillation.

Si + 2 C1₂ → SiCl₄

When you are using this chemical, please be cautious about it. As a chemical, it is irritating to eyes, respiratory system and skin. It also is harmful by inhalation, in contact with skin and if swallowed. Through it has limited evidence of a carcinogenic effect, it has risk of serious damage to eyes. Furthermore, it causes burns. During using it, wear suitable protective clothing, gloves and eye/face protection. After contact with skin, wash immediately. If contact with eyes accidently, rinse immediately with plenty of water and seek medical advice. In case of accident or if you feel unwell seek medical advice immediately. After using it, take off immediately all contaminated clothing and keep container tightly closed and dry.

You can still convert the following datas into molecular structure:
1. Canonical SMILES: [Si](Cl)(Cl)(Cl)Cl
2. InChI: InChI=1S/Cl4Si/c1-5(2,3)4
3. InChIKey: FDNAPBUWERUEDA-UHFFFAOYSA-N

The toxicity data is as follows: