469300
Hexamethyldisiloxane
viscosity 0.65 cSt (25 °C)
Synonym(s):
Poly(dimethylsiloxane), HMDSO
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About This Item
Linear Formula:
(CH3)3SiOSi(CH3)3
CAS Number:
Molecular Weight:
162.38
UNSPSC Code:
12162002
NACRES:
NA.23
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)
refractive index
n20/D 1.377 (lit.)
viscosity
0.65 cSt(25 °C)
bp
101 °C (lit.)
mp
−59 °C (lit.)
density
0.764 g/mL at 20 °C (lit.)
Quality Level
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Application
- Superhydrophobic Surface Coating: Studies the application of hexamethyldisiloxane coatings on fabric masks via plasma treatment to achieve superhydrophobic properties, enhancing the masks′ resistance to moisture (M Prado et al., 2022).
- PECVD for Thin Film Coatings: Describes the use of hexamethyldisiloxane in plasma-enhanced chemical vapor deposition to create thin film coatings, exploring the effects of using extremely asymmetric capacitive RF discharge (Ž Gosar et al., 2020).
- QCM-Based VOC Sensors: Hexamethyldisiloxane thin films are used as sensitive coatings for quartz crystal microbalance sensors, enhancing their capability to detect various volatile organic compounds (M Boutamine et al., 2014).
- Hydrophobic-Hydrophilic Films: Explores the polymerization of hexamethyldisiloxane using atmospheric pressure plasma jets to create films with tailored hydrophobic and hydrophilic properties (M Bashir, S Bashir, 2015).
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
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