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tribromosilicon

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Origin: China

Cas No: 7789-57-3

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.: 7789-57-3 Formula: Br3Si Molecular Weight: 267.79800

Description

Tribromosilane is a chemical compound containing silicon, hydrogen, and bromine. At high temperatures, it decomposes to produce silicon, and is an alternative to purified trichlorosilane of ultrapure silicon in the semiconductor industry.
The Schumacher Process of silicon deposition uses tribromosilane gas to produce polysilicon, but it has a number of cost and safety advantages over the Siemens Process to make polysilicon.
It may be prepared by heading crystalline silicon with gaseous hydrogen bromide at high temperature. It spontaneously combusts when exposed to air.

Basic Info

Chemical Name	tribromosilicon
Synonyms	Tribromosilyl; Silicobromoform; Tribromsilan; Silane,tribromo; SiBr3; tribromo silane; Tribromomonosilane;
CAS No.	7789-57-3
Molecular Formula	Br3Si
Molecular Weight	267.79800
PSA	0.00000
LogP	2.15600

Synthesis Route

Silicon(IV) bromide+trimethyltin→tribromosilicon+dibromo(dimethyl)stannane
hydrogen bromide+silicon atom→tribromosilicon+silyl bromide
hydrogen bromide+silicon atom→tribromosilicon+Silicon(IV) bromide

Precursor

silicon atom
trimethyltin
dibromochlorosilane
hydrogen bromide

Downstream Product

perbromotetrasilane
disilicon hexabromide
silicon atom
Silicon(IV) bromide

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