Zibo Linzi Qiquan Industrial Trade Co., Ltd

trichlorosilane

• Category :

  Intermediates

• Synonyms :

  trichlorosilane pressure tin;Trichlorosilanecolorlessliq;silicon chloroform;Trichlorosilane,98%;trichlorosilyl;

• CAS NO :

  10025-78-2

• EC NO :

  233-042-5

• Molecular Formula :

  Cl₃Si

• Molecular Weight :

  134.4445

• Main Specifications :

• InChI :

  InChI=1/Cl3Si/c1-4(2)3

• Product description :

  ZQ-606

  Basic information :
  1. Alias • English
  Chloroform silicon, silicon imitation, trichlorosilane; Trichlorosilane, Silicochloroform.
  2. Use
  Basic raw materials for Polysilicon and silane coupling
  3.Ways of produce:
  (1) Si and HCl under high temperature reaction.
  (2) reduction of silicon tetrachloride with hydrogen (using a catalyst of aluminum-containing compounds).
   
  characters: 
  1, physical and chemical properties
  1,1, Molecular weight: 135.43
  1,2, Physical
  Melting point (101.325kPa): -134 ℃;   Boiling point (101.325kPa): 31.8 ℃;    liquid density (0 ℃): 1350kg/m3;   Relative density (gas, air = 1): 4.7; Vapor pressure (-16.4 ℃): 13.3kPa; (14.5 ℃): 53.3kPa; lit: -27.8 ℃;  Ignition point: 104.4 ℃; Flash point: -14 ℃; Explosive Limit: 6.9 to 70%;
  2.toxic levels: 
  1.3, flammability level; 
  1.4,  the explosive nature of levels.

  Chemical Properties

  2,1, trichlorosilane at room temperature under normal pressure flow easily with irritating odor colorless volatile liquid. Burn easily in air at -18 ℃ .The following are a fire hazard,  stronger in  case of the fire is burning, when burning red flame and white smoke is generated, with SiO2, HCl and Cl2 produced: SiHCl3 + O2 → SiO2 + HCl + Cl2;

  2,2, trichlorosilane vapor concentration with air to form a wide range of explosive mixture, when heated cause a violent explosion. The thermal stability is of better than dichlorosilane at 900 ℃, decomposition of toxic fumes of chloride (HCl), also generates Cl2 and Si.

  2,3, when the smoke case of moisture, with water heated reaction: 2SiHCl3 +3 H2O-→ (HSiO) 2O +6 HCl;

  2,4, released in the decomposition of alkaline solution of hydrogen: SiHCl3 +3 NaOH + H2O-→ Si (OH) 4 +3 NaCl + H2;

  2,5,  An explosive reaction was produced in contact with oxidizing substances . And acetylene, hydrocarbons and other organic hydrocarbons reaction chlorosilane: SiHCl3 + CH ≡ CH 1 → CH2CHSiCl3, SiHCl3 + CH2 = CH2-→ CH3CH2SiCl3

  2,6, in the lithium aluminum hydride, lithium boron hydride under the conditions of existence, SiHCl3 can be reduced to silane. when the liquid container has been badly hit SiHCl3 will be on fire. Soluble in benzene, ether. Anhydrous state trichlorosilane on iron and stainless steel does not corrode, but  in the presence of water  majority of metal will get corrosion.

• Molecular Structure :