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205389

Sigma-Aldrich

Hexamethyldisiloxane

≥98%

Synonyma:

HMDSO

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About This Item

Lineární vzorec:
(CH3)3SiOSi(CH3)3
Číslo CAS:
107-46-0
Molekulová hmotnost:
162.38
Beilstein/REAXYS Number:
1736258
EC Number:
203-492-7
MDL number:
MFCD00008265
UNSPSC Code:
12352103
PubChem Substance ID:
24852329
NACRES:
NA.22

vapor density

>1 (vs air)

assay

≥98%

form

liquid

refractive index

n20/D 1.377 (lit.)

bp

101 °C (lit.)
101 °C

mp

−59 °C (lit.)

density

0.764 g/mL at 20 °C (lit.)

SMILES string

C[Si](C)(C)O[Si](C)(C)C

InChI

1S/C6H18OSi2/c1-8(2,3)7-9(4,5)6/h1-6H3

InChI key

UQEAIHBTYFGYIE-UHFFFAOYSA-N

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General description

Hexamethyldisiloxane (HMDSO), a linear polydisiloxane, is an organosilicon reagent commonly utilized as a source for plasma enhanced chemical vapor deposition (PE-CVD) of thin films of silicon compounds. It is also employed as a substitute to silane in silicon integrated circuit technology. Its dissociative ionization by electron impact has been studied by Fourier transform mass spectrometry. Synthesis of plasma-polymerized HMDSO thin films by atmospheric pressure glow (APG) discharge has been reported. Crystals of HMDSO at 148K are monoclinic. Addition of HMDSO to P4S10, improves its efficiency as thionating agent.

Application

Hexamethyldisiloxane can be used:
  • To fabricate a gas diffusion layer (GDL) with controlled hydrophobic silicone nano-layer by the dry deposition process.
  • To prepare silver nanoparticles coated with silica using arginine and glucose as the catalyst and the reducing agent, respectively.

pictograms

FlameEnvironment
GHS02,GHS09

signalword

Danger

hcodes

H225,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 2

flash_point_f

21.2 °F - closed cup

flash_point_c

-6 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Osvědčení o analýze (COA)

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Navštívit knihovnu dokumentů

Tae-Jun Ko et al.
ACS applied materials & interfaces, 7(9), 5506-5513 (2015-02-18)
Reliable operation of a proton exchange membrane fuel cell requires proper water management to prevent water flooding in porous carbon materials such as the gas diffusion layer (GDL). In contrast to the conventional GDL that uses the "wet" dip-coating process
Philippe Saint-Cricq et al.
Journal of materials chemistry. B, 1(19), 2451-2454 (2013-05-21)
Mesoporous silica-coated silver nanoparticles (Ag@MSN) were prepared by a two step synthesis in an environment friendly way. Arginine and glucose were used as a catalyst for the formation of silica and as a reducing agent for silver ions, respectively, in
Thin films deposition from hexamethyldisiloxane and hexamethyldisilazane under dielectric-barrier discharge (DBD) conditions.
Schmidt-Szalowski K, et al.
Plasmas and polymers, 5(3-4), 173-190 (2000)
Israel Sifuentes-Nieves et al.
International journal of biological macromolecules, 144, 682-689 (2019-12-21)
In the present study, the effect of plasma treatment on the structural properties of three granular corn starches (normal, Hylon V and Hylon VII) was investigated. Thermal (TGA/DSC), structural (XRD/FTIR) and chemical (XPS) properties were evaluated. Plasma treatment resulted in
The crystal and molecular structures of disiloxane (at 108 K) and hexamethyldisiloxane (at 148 K).
Barrow MJ, et al.
Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials, 35(9), 2093-2099 (1979)
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