Hexamethyldisiloxane
SIAL/52630 - puriss., ≥98.5% (GC)
Synonym: 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
assay | ≥98.5% (GC) |
bp | 101 °C (lit.) |
density | 0.764 g/mL at 20 °C (lit.) |
form | liquid |
grade | puriss. |
InChI | 1S/C6H18OSi2/c1-8(2,3)7-9 |
InChI key | UQEAIHBTYFGYIE-UHFFFAOYSA |
mp | −59 °C (lit.) |
Quality Level | 200 ![]() |
refractive index | n |
n |
|
SMILES string | C[Si](C)(C)O[Si](C)(C)C |
vapor density | >1 (vs air) |
Application: | Hexamethyldisiloxane is used:• As a modifying agent in the presence of ethanol/n-hexane solution for the preparation of hydrophobic and hydrophilic sodium silicate-based silica xerogels. • To form the dielectric layers in the MIM(metal-insulator-metal |
Features and Benefits: | Hexamethyldisiloxanehas high thermal stability. |
General description: | HMDSO(hexamethyldisiloxan |
Other Notes: | For a facile silylation of carboxylic acids; As chloride anion acceptor in the synthesis of sulphinic esters |
Symbol | ![]() ![]() |
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 |
Purity | ≥98.5% (GC) |
bp | 101 °C (lit.) |
mp | −59 °C (lit.) |
Density | 0.764 g/mL at 20 °C (lit.) |
Refractive Index | n |
UNSPSC | 12352103 |