CAS No.7789-66-4,SILICON TETRABROMIDE Suppliers

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Basic Information

Molecular Structure:
CAS No.:	7789-66-4
Name:	SILICON TETRABROMIDE
Article Data:	43

Formula:	Br₄Si
Molecular Weight:	347.702
Synonyms:	Siliconbromide (SiBr4) (6CI,8CI);Perbromosilane;Silicon bromide;Silicontetrabromide;Tetrabromosilane;Silicon bromide; Silicon bromide (SiBr4); Silicon tetrabromide;silicon tetrabromide;
EINECS:	232-182-4
Density:	2.971 g/cm³
Melting Point:	5 °C(lit.)
Boiling Point:	154 °C at 760 mmHg
Flash Point:	154°C
Solubility:	decomposed in water to HBr, silicic acid, with evolution of heat [MER06]
Hazard Symbols:	C
Risk Codes:	34
Safety:	26-27-28-36/37/39
Transport Information:	UN 3264 8/PG 2
PSA:	0.00000
LogP:	3.00160

Synthetic route

: 10581-00-7
phenyltribromosilane

: 10035-10-6, 12258-64-9
hydrogen bromide

: 7789-66-4
tetrabromosilane

Conditions

Conditions	Yield
With aluminum tri-bromide In benzene byproducts: PhH; 12 h, room temp.; 5-6 h, 70°C; distn.;	99.4%

: 7440-21-3
silicon

A: 4072-00-8
Diphenyldibromsilan

B: 10581-00-7
phenyltribromosilane

C: 7789-66-4
tetrabromosilane

Conditions

Conditions	Yield
With C6H5Br; copper In neat (no solvent) Si-Cu (8:2) and C6H5Br at about 420°C;;	A 27% B 42% C 13%

...Expand

: 10026-04-7, 53609-55-5
tetrachlorosilane

: 87-82-1
hexabromobenzene

A: 7789-66-4
tetrabromosilane

B: 13465-75-3
dibromo dichlorosilane

C: 13465-74-2
bromo trichloro silane

D: 13465-76-4
chloro tribromo silane

Conditions

Conditions	Yield
In gas High Pressure; reagents added to tube in dry ice bath, sealed in amts. to develop about 30-50 atm of pressure at 300°C, heated at 310-350°C for 1.5-69 h; analyzed by GLC;

...Expand

: silver(I) bromide

: 7440-21-3
silicon

: 7789-66-4
tetrabromosilane

Conditions

Conditions	Yield
above m.p. of AgBr in vac.;

: 10035-10-6, 12258-64-9
hydrogen bromide

: 7440-21-3
silicon

A: 7789-57-3
tribromosilane

B: 7789-66-4
tetrabromosilane

Conditions

Conditions	Yield
340-360 °C;
340-360 °C;
In neat (no solvent) moderate heating of Si in a dry HBr stream;;
In neat (no solvent) heating of Si in a HBr stream below red heat;; fractional distillation;;

...Expand

Cu(b),Si(10) (X%): Cu(b),Si(10) (X%)

: 10035-10-6, 12258-64-9
hydrogen bromide

A: 7789-57-3
tribromosilane

B: 7789-66-4
tetrabromosilane

...Expand

: 593-95-3
carbonyl dibromide

: 112926-00-8, 7631-86-9
silica gel

: 7789-66-4
tetrabromosilane

Conditions

Conditions	Yield
In neat (no solvent) byproducts: Si2OBr6, bromine, carbon monoxide; >1000 K;

Cu(20),Si(80) (X%): Cu(20),Si(80) (X%)

: 10035-10-6, 12258-64-9
hydrogen bromide

A: 7789-57-3
tribromosilane

B: 7789-66-4
tetrabromosilane

...Expand

: 13465-74-2
bromo trichloro silane

A: 10026-04-7, 53609-55-5
tetrachlorosilane

B: 7789-66-4
tetrabromosilane

Conditions

Conditions	Yield
In neat (no solvent) passing SiBrCl3 through a tube, heated at 600 °C;;
In neat (no solvent) passing SiBrCl3 through a tube, heated at 600 °C;;

: 13465-74-2
bromo trichloro silane

: 13465-76-4
chloro tribromo silane

A: 10026-04-7, 53609-55-5
tetrachlorosilane

B: 7789-66-4
tetrabromosilane

Conditions

Conditions	Yield
In neat (no solvent) passing a mixture of SiBrCl3 and SiBr3Cl through a tube, heated at 600 °C;;
In neat (no solvent) passing a mixture of SiBrCl3 and SiBr3Cl through a tube, heated at 600 °C;;

...Expand

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Specification

The Silane, tetrabromo-, with the CAS registry number 7789-66-4 and EINECS registry number 232-182-4, has systematic name of tetrabromosilane. It belongs to the product category of Pharmacetical. And the molecular formula of the chemical is Br₄Si.

The characteristics of Silane, tetrabromo- are as followings: (1)ACD/LogP: 5.86; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 5.86; (4)ACD/LogD (pH 7.4): 5.86; (5)ACD/BCF (pH 5.5): 16712.71; (6)ACD/BCF (pH 7.4): 16712.71; (7)#H bond acceptors: 0; (8)#H bond donors: 0; (9)#Freely Rotating Bonds: 0; (10)Polar Surface Area: 0 Å²; (11)Index of Refraction: 1.631; (12)Molar Refractivity: 41.69 cm³; (13)Molar Volume: 116.9 cm³; (14)Polarizability: 16.52×10^-24cm³; (15)Surface Tension: 43.1 dyne/cm; (16)Density: 2.971 g/cm³; (17)Enthalpy of Vaporization: 37.9 kJ/mol; (18)Boiling Point: 154 °C at 760 mmHg; (19)Vapour Pressure: 4.17 mmHg at 25°C.

You should be cautious while dealing with this chemical. It may cause burns. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection; Take off immediately all contaminated clothing; After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer); In case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: Br[Si](Br)(Br)Br
(2)InChI: InChI=1/Br4Si/c1-5(2,3)4
(3)InChIKey: AIFMYMZGQVTROK-UHFFFAOYAY