205389
Hexamethyldisiloxane
≥98%
Synonym(s):
HMDSO
Sign In to View Organizational & Contract Pricing.
Select a Size
About This Item
Linear Formula:
(CH3)3SiOSi(CH3)3
CAS Number:
Molecular Weight:
162.38
UNSPSC Code:
12352103
NACRES:
NA.22
PubChem Substance ID:
EC Number:
203-492-7
Beilstein/REAXYS Number:
1736258
MDL number:
InChI key
UQEAIHBTYFGYIE-UHFFFAOYSA-N
InChI
1S/C6H18OSi2/c1-8(2,3)7-9(4,5)6/h1-6H3
SMILES string
C[Si](C)(C)O[Si](C)(C)C
vapor density
>1 (vs air)
assay
≥98%
form
liquid
Quality Level
mp
−59 °C (lit.)
density
0.764 g/mL at 20 °C (lit.)
Looking for similar products? Visit Product Comparison Guide
Related Categories
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.
signalword
Danger
hcodes
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 2
Storage Class
3 - Flammable liquids
wgk
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
Regulatory Information
危险化学品
This item has
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
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)
Synthesis of plasma-polymerized tetraethoxysilane and hexamethyldisiloxane films prepared by atmospheric pressure glow discharge.
Sawada Y, et al.
Journal of Physics D: Applied Physics, 28(8), 1661-1661 (1995)
Ion chemistries in hexamethyldisiloxane.
Jiao CQ, et al.
Journal of Vacuum Science & Technology. A, Vacuum, Surfaces, And Films, 23(5), 1295-1304 (2005)
The Raman Spectra of Hexamethyldisilane and Hexamethyldisiloxane.
Murata H and Kumada M.
J. Chem. Phys. , 21(5), 945-945 (1953)
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
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service