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

Catalog Number	PKG Qty.	Price	Quantity


45-52630-100ML	100 mL	$36.70 1/EA		Add To Favorites
45-52630-500ML	500 mL	$104.00 1/EA		Add To Favorites
45-52630-1L	1 L	$149.00 1/EA		Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

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(4,5)6/h1-6H3
InChI key	UQEAIHBTYFGYIE-UHFFFAOYSA-N
mp	−59 °C (lit.)
Quality Level	200
refractive index	n20/D 1.377
	n20/D 1.377 (lit.)
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) structure that is consisting of graphene quantum dots(GQDs) to prepare two-terminal NVM (non-volatile-memory) devices.
Features and Benefits:	Hexamethyldisiloxanehas high thermal stability.
General description:	HMDSO(hexamethyldisiloxane) is an organosilicon compound. It is a non-toxic, environmentally friendly monomer. It can be used as a precursor to synthesize organosilicon thin films. It serves as a silylating agent for carboxylic acids and alcohols. Additionally, it is used in the preparation of aroyl chlorides. HMDSO is commonly used as a water-repellent.
Other Notes:	For a facile silylation of carboxylic acids; As chloride anion acceptor in the synthesis of sulphinic esters

Symbol	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

Purity	≥98.5% (GC)
bp	101 °C (lit.)
mp	−59 °C (lit.)
Density	0.764 g/mL at 20 °C (lit.)
Refractive Index	n20/D 1.377 (lit.); n20/D 1.377
UNSPSC	12352103

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