Octachlorotrisilane

Base Information

• Chemical Name: Octachlorotrisilane
• CAS No.: 13596-23-1
• Molecular Formula: Cl8Si3
• Molecular Weight: 367.881
• European Community (EC) Number: 237-041-0
• UNII: 98T4BE9Y7H
• DSSTox Substance ID: DTXSID6065551
• Nikkaji Number: J241.205E
• Wikidata: Q16682763
• Mol file: 13596-23-1.mol

Synonyms:Octachlorotrisilane;13596-23-1;Trisilane, octachloro-;trichloro-[dichloro(trichlorosilyl)silyl]silane;98T4BE9Y7H;Trisilane, 1,1,1,2,2,3,3,3-octachloro-;EINECS 237-041-0;Ctachlorotrisilane;Cl8Si3;Cl8-Si3;UNII-98T4BE9Y7H;DTXSID6065551;MFCD29066936

Chemical Property of Octachlorotrisilane

Chemical Property:

• Vapor Pressure: 9.4Pa at 25℃
• Melting Point: -67°C
• Refractive Index: 1.513
• Boiling Point: 211.4°C (estimate)
• Flash Point: 78°C (172°F)
• PSA: 0.00000
• Density: 1.621g/cm³
• LogP: 4.37360
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 367.675701
• Heavy Atom Count: 11
• Complexity: 120

Purity/Quality:

99.9% ^*data from raw suppliers

OCTACHLOROTRISILANE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Toxic Gases & Vapors -> Chlorosilanes
• Canonical SMILES: [Si]([Si](Cl)(Cl)Cl)([Si](Cl)(Cl)Cl)(Cl)Cl

Technology Process of Octachlorotrisilane

There total 7 articles about Octachlorotrisilane which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 80.0%

silicon (7440-21-3) → tetrachlorosilane (10026-04-7,53609-55-5) + hexachlorodisilane (13465-77-5) + perchlorotrisilane (13596-23-1)

Guidance literature:

In neat (no solvent); chlorination of crude Si at 300-310 °C; best yield of SiCl4;;

Reference yield:

Si(b),Ca(30-35) (X%) + chlorine (7782-50-5) → tetrachlorosilane (10026-04-7,53609-55-5) + tetrasilicon decachloride (13763-19-4) + dodecachloro pentasilane (13596-24-2) + hexachlorodisilane (13465-77-5) + perchlorotrisilane (13596-23-1)

Guidance literature:

In neat (no solvent); passing dry Cl2 through a glass tube, filled with Ca-silicide and heated by a electric spiral at 150-250 °C for about 12-14 days, further products;; fractional distillation;;

Reference yield:

silicon iron + chlorine (7782-50-5) → tetrachlorosilane (10026-04-7,53609-55-5) + hexachlorodisilane (13465-77-5) + perchlorotrisilane (13596-23-1)

Guidance literature:

In neat (no solvent); reaction of 50 kg ferrosilicon with 50% Si with 143 kg Cl2 in a iron tube at 180-260 °C, yields of Si2Cl6 vary between 4.6-8.6% (depending on reaction temperature);; separation by fractional condensation and distillation; removal of Cl2 by shaking with Hg;;

upstream raw materials:

silicon

chlorine

hydrogenchloride

octaphenyltrisilane

Downstream raw materials:

tetrachlorosilane

tetraethoxy orthosilicate

hexachlorodisilane

dibromo dichlorosilane