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Hexamethyldisiloxane

ALDRICH/469300 - viscosity 0.65 cSt (25 °C)

Synonym: Poly(dimethylsiloxane); HMDSO

CAS Number: 107-46-0
Empirical Formula (Hill Notation): C6H18OSi2
Molecular Weight: 162.38
EC Number: 203-492-7
MDL Number: MFCD00008265
Linear Formula: (CH3)3SiOSi(CH3)3
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-469300-50ML 50 mL
 $170.00
1/EA		 Add To Favorites
45-469300-250ML 250 mL
 $585.00
1/EA		 Add To Favorites

 

bp 101 °C (lit.)
density 0.764 g/mL at 20 °C (lit.)
InChI 1S/C6H18OSi2/c1-8(2,3)7-9(4,5)6/h1-6H3
InChI key UQEAIHBTYFGYIE-UHFFFAOYSA-N
mp −59 °C (lit.)
Quality Level 100 
refractive index n20/D 1.377 (lit.)
SMILES string C[Si](C)(C)O[Si](C)(C)C
vapor density >1 (vs air)
viscosity 0.65 cSt(25 °C)
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 ).
Packaging: 50, 250 mL in poly bottle
Symbol GHS02GHS09  GHS02,GHS09
Signal word Danger
Hazard statements H225 - H410
Precautionary statements P210 - P273
Hazard Codes F,N
Risk Statements 11-50/53
Safety Statements 16-61
RIDADR UN1993 - class 3 - PG 2 - EHS - VP <= 110kPa - Flammable liquids
WGK Germany WGK 2
Flash Point(F) 21.2 °F - closed cup
Flash Point(C) -6 °C - closed cup
bp 101 °C (lit.)
mp −59 °C (lit.)
Density 0.764 g/mL at 20 °C (lit.)
Refractive Index n20/D 1.377 (lit.)
UNSPSC 12162002

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