ChemicalBook > CAS DataBase List > Hexamethyldisilane

Hexamethyldisilane

Product Name
Hexamethyldisilane
CAS No.
1450-14-2
Chemical Name
Hexamethyldisilane
Synonyms
HMD;1,1,1,2,2,2-Hexamethyldisilane;DK545;CH7280;CFS-142;(CH3)6Si2;DISILANE M6;Permethyldisilane;HEXAMETHYLDISILANE;hexamethyl-disilan
CBNumber
CB4476113
Molecular Formula
C6H18Si2
Formula Weight
146.38
MOL File
1450-14-2.mol
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Hexamethyldisilane Property

Melting point:
9-12 °C (lit.)
Boiling point:
112-114 °C (lit.)
Density 
0.715 g/mL at 25 °C (lit.)
refractive index 
n20/D 1.422(lit.)
Flash point:
29 °F
storage temp. 
Store at <= 20°C.
solubility 
sol common organic solvents; insol H2O.
form 
liquid
Specific Gravity
0.729
color 
colorless
Water Solubility 
Insoluble in water. Soluble in alcohol, ether and acetone.
Hydrolytic Sensitivity
1: no significant reaction with aqueous systems
BRN 
1633463
Stability:
Volatile
InChIKey
NEXSMEBSBIABKL-UHFFFAOYSA-N
CAS DataBase Reference
1450-14-2(CAS DataBase Reference)
NIST Chemistry Reference
Disilane, hexamethyl-(1450-14-2)
EPA Substance Registry System
Disilane, hexamethyl- (1450-14-2)
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Safety

Hazard Codes 
F,Xi
Risk Statements 
11-36/37-43-36/37/38
Safety Statements 
16-23-45-9-33-26-7/9
RIDADR 
UN 1993 3/PG 2
WGK Germany 
2
RTECS 
JM9170000
TSCA 
Yes
HazardClass 
3
PackingGroup 
II
HS Code 
29310095
Toxicity
LD50 orally in Rabbit: 2160 mg/kg LD50 dermal Rabbit 2160 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H225Highly Flammable liquid and vapour

H317May cause an allergic skin reaction

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.18889
Product name
Hexamethyldisilane
Purity
for synthesis
Packaging
10ml
Price
$77.2
Updated
2024/03/01
Sigma-Aldrich
Product number
217069
Product name
Hexamethyldisilane
Purity
98%
Packaging
5g
Price
$22.56
Updated
2024/03/01
Sigma-Aldrich
Product number
8.18889
Product name
Hexamethyldisilane
Purity
for synthesis
Packaging
50mL
Price
$166
Updated
2024/03/01
Sigma-Aldrich
Product number
217069
Product name
Hexamethyldisilane
Purity
98%
Packaging
10g
Price
$70.5
Updated
2024/03/01
TCI Chemical
Product number
H0638
Product name
Hexamethyldisilane
Purity
>98.0%(GC)
Packaging
10mL
Price
$35
Updated
2024/03/01
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Hexamethyldisilane Chemical Properties,Usage,Production

Chemical Properties

Colorless clear liquid

Uses

Hexamethyldisilane acts as a silylating reagent for allylic acetates, aryl halides and diketones. It is a source material for vapor deposition during silicon carbide growth. It is also used in electronic and semiconducter industries.

Application

Hexamethyldisilane is an important silane protective agent, which can synthesize sodium trimethylsilane, potassium trimethylsilane and lithium trimethylsilane.
Preparation of iodotrimethylsilane.
Used as trimethylsilane anion reagent.
silylating or reducing reagent in combination with a Pd catalyst or a nucleophile.
Replaces aromatic nitriles with TMS groups in presence of [RhCl(cod)]2.
Precursor for CVD of silicon carbide.
Brings about the homocoupling of arenesulfonyl chlorides in the presence of Pd2(dba)3.
Used as a solvent for the direct borylation of fluoroaromatics.
Reacts with alkynes to form siloles.
Undergoes the silylation of acid chlorides to give acylsilanes.

Preparation

Hexamethyldisilane is produced by the reaction of methyl Grignard reagent with methylchlorodisilanes. This reaction is normally conducted in the presence of an ether such as diethyl ether, ethyl propyl ether, THF and the like.

Fire Hazard

Hexamethyldisilazane (HMDZ) is a highly flammable liquid and vapour.
HMDZ liquid is lighter than water and may float on water, spreading material during fire fighting. Leaking material or fire runoff to sewer may create fire or explosion hazard.
HMDZ vapours are heavier than air and can accumulate to form explosive concentrations. The vapours may also spread a considerable distance to a source of ignition, and flash back towards the source.
HMDZ reacts with water to form ammonia.
HMDZ is a non-conductor and, therefore, can accumulate static electrical charges when processed, handled or dispensed. HMDZ's flash point is 52 to 53°F, closed cup, for "pure" material.

Purification Methods

The most likely impurity is trimethylchlorosilane (cf boiling point). Wash it with H2O, cold conc H2SO4, H2O again, then aqueous NaHCO3, dry over CaSO4 and fractionate at atmospheric pressure. [Brown & Fowles J Chem Soc 2811 1958.] A grossly impure sample (25% impurities) was purified by repeated spinning band distillation. This lowered the impurity level to 500ppm. The main impurity was identified as 1-hydroxypentamethyldisilane. [Beilstein 4 IV 4277.]

Hexamethyldisilane Preparation Products And Raw materials

Raw materials

Preparation Products

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Hexamethyldisilane Suppliers

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View Lastest Price from Hexamethyldisilane manufacturers

Hebei Miaobian Biotechnology Co., Ltd
Product
Hexamethyldisilane 1450-14-2
Price
US $10.00/KG
Min. Order
1KG
Purity
99.99
Supply Ability
10Ton
Release date
2021-03-16
Hubei Co-Formula Material Tech Co., Ltd.
Product
Hexamethyldisilane;HMD; CFS-142 1450-14-2
Price
US $30.00/KG
Min. Order
1KG
Purity
min99%
Supply Ability
10MT/month
Release date
2020-07-03
Career Henan Chemical Co
Product
Hexamethyldisilane 1450-14-2
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
Customized
Release date
2018-08-07

1450-14-2, HexamethyldisilaneRelated Search:

Hexamethyldisiloxane tert-Butyldimethylsilyl chloride Tetramethylsilane Diethoxydimethylsilane 1,3-Bis(trimethylsilyl)urea Methyltriethoxysilane Dimethyldimethoxysilane Bromotrimethylsilane CHLORODIMETHYLVINYLSILANE Dichlorodimethylsilane Methyltrimethoxysilane Hexamethyldisilazane Vinyltrimethoxysilane Chloro(chloromethyl)dimethylsilane Hexamethylcyclotrisiloxane Lithium bis(trimethylsilyl)amide Silicon Bis(2-methoxyphenyl)-1,1,2,2-tetramethyldisilane, 95%

  • HEXAMETHYLDISILANE
  • HMD
  • DISILANE M6
  • (CH3)6Si2
  • 1,1,1,2,2,2-Hexamethyldisilane
  • CH7280
  • disilane,hexamethyl-
  • Hecamethyldisilane
  • hexamethyl-disilan
  • hexamethyldisilane(hmd)
  • Permethyldisilane
  • trimethyl-trimethylsilyl-silane
  • Ht--404 Hexamethyldisilane (Hmd)
  • HEXAMETHYLDISILANE WACKER QUALITY
  • Hexamethyldisilane, 98+%
  • Hexamethyldisilane,97%
  • 2,2,3,3-Tetramethyl-2,3-disilabutane
  • HexaMethyldisilane, 98+% 10ML
  • HexaMethyldisilane, 98+% 50ML
  • Disilane, 1,1,1,2,2,2-hexaMethyl-
  • Six Methyl two silane
  • Co-Formula CFS-142
  • CFS-142
  • Hexamethyldisilane&gt
  • HEXAMETHYLDISILANE FOR SYNTHESIS
  • DK545
  • Hexamethyldisilane, ≥ 98.0%
  • 1450-14-2
  • 450-14-2
  • CH33SiSiCH33
  • SiCH332
  • C6H18Si2
  • Organometallic Reagents
  • Organosilicon
  • Disilanes
  • Si (Classes of Silicon Compounds)
  • Si-Si Compounds
  • Standards for NMR
  • NMR Spectrometry
  • Silicon Compounds (for Synthesis)
  • organosilicon compounds
  • Pharmaceutical Intermediates
  • Chemical Synthesis
  • Organometallic Reagents
  • Blocking Agents
  • Protective Agents
  • Silylating Agents
  • Special Silanes
  • Disilanes
  • DisilanesVapor Deposition Precursors
  • Organometallic Reagents
  • Organosilicon
  • Precursors by Metal
  • Standards for NMR
  • Analytical Chemistry
  • NMR Spectrometry
  • Si (Classes of Silicon Compounds)
  • Silicon Compounds (for Synthesis)