Reported in EPA TSCA Inventory.

DOT Classification:  4.3; Label: Dangerous When Wet, Flammable Liquid, Corrosive

1. Introduction of Trichlorosilane

The Trichlorosilane belongs to product categories of Reduction; Si (Classes of Silicon Compounds); Si-Cl Compounds; Si-H Compounds; Silicon Compounds (for Synthesis); Synthetic Organic Chemistry; Trichlorosilanes; Chloro Silanes; POSS Precursors and Intermediates; Protecting and Derivatizing Reagents; RSiCl₃Protection and Derivatization; Silicon-Based; Silsesquioxanes: POSS Nanohybrids. This chemical is a clear liquid and should be stored in a ventilated, cool and dry place. Besides, it is the basic ingredient used in the production of purified polysilicons.

2. Properties of Trichlorosilane

Physical properties about Trichlorosilane are: (1)ACD/LogP: 4.77; (2)ACD/LogD (pH 5.5): 4.77; (3)ACD/LogD (pH 7.4): 4.77; (4)ACD/BCF (pH 5.5): 2501.35; (5)ACD/BCF (pH 7.4): 2501.35; (6)Enthalpy of Vaporization: 26.57 kJ/mol; (7)Boiling Point: 31.8 °C at 760 mmHg; (8)Vapour Pressure: 596 mmHg at 25 °C.

3. Structure Descriptors of Trichlorosilane

You could convert the following datas into the molecular structure:
1). Canonical SMILES: [Si](Cl)(Cl)Cl
2). InChI: InChI=1S/Cl3Si/c1-4(2)3
3). InChIKey: PPDADIYYMSXQJK-UHFFFAOYSA-N

4. Toxicity of Trichlorosilane

5. Safety Information of Trichlorosilane

When you are using this chemical, please be cautious about it. As a chemical, it is spontaneously flammable in air and causes severe burns. It is also harmful by inhalation and if swallowed. Besides, it reacts violently with water and liberates toxic gas. During using it, wear suitable protective clothing, gloves and eye/face protection. Keep container tightly closed and in a well-ventilated place away from sources of ignition. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If accident happens or you feel unwell seek medical advice immediately.

6. Preparation of Trichlorosilane

Preparation of Trichlorosilane: it is prepared by blowing hydrogen chloride through a bed of silicon powder at 300°C. The yield is about 80-90%. What's more, the reaction produces byproducts of silicon tetrachloride (chemical formula SiCl₄), hexachlorodisilane (Si₂Cl₆), and dichlorosilane (H₂SiCl₂), which can be separated by distillation.

Si+3HCl→HSiCl₃+H₂