Skip to Content
Merck
CN
All Photos(1)

Documents

Safety Information

52630

Sigma-Aldrich

Hexamethyldisiloxane

puriss., ≥98.5% (GC)

Sign Into View Organizational & Contract Pricing
All Photos(1)
Synonym(s):
HMDSO
Linear Formula:
(CH3)3SiOSi(CH3)3
CAS Number:
107-46-0
Molecular Weight:
162.38
Beilstein:
1736258
EC Number:
203-492-7
MDL number:
MFCD00008265
UNSPSC Code:
12352103
PubChem Substance ID:
329757863
NACRES:
NA.22

vapor density

>1 (vs air)

Quality Level

200

grade

puriss.

Assay

≥98.5% (GC)

form

liquid

refractive index

n20/D 1.377 (lit.)
n20/D 1.377

bp

101 °C (lit.)

mp

−59 °C (lit.)

density

0.764 g/mL at 20 °C (lit.)

SMILES string

C[Si](C)(C)O[Si](C)(C)C

InChI

1S/C6H18OSi2/c1-8(2,3)7-9(4,5)6/h1-6H3

InChI key

UQEAIHBTYFGYIE-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

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.

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.

Other Notes

For a facile silylation of carboxylic acids; As chloride anion acceptor in the synthesis of sulphinic esters

Pictograms

FlameEnvironment
GHS02,GHS09

Signal Word

Danger

Hazard Statements

H225,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 2

WGK

WGK 2

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

J. Drabowicz
Chemistry Letters (Jpn), 1753-1753 (1981)
J. Heberle et al.
Silylating Agents, 2nd ed. (1995)
Pavel Solař et al.
Scientific reports, 7(1), 8514-8514 (2017-08-19)
Nanoparticles composed of multiple silver cores and a plasma polymer shell (multicore@shell) were prepared in a single step with a gas aggregation cluster source operating with Ar/hexamethyldisiloxane mixtures and optionally oxygen. The size distribution of the metal inclusions as well
H. Matsumoto et al.
Chemistry Letters (Jpn), 1475-1475 (1980)
Edyta Słupek et al.
Materials (Basel, Switzerland), 14(2) (2021-01-10)
The paper presents the screening of 20 deep eutectic solvents (DESs) composed of tetrapropylammonium bromide (TPABr) and glycols in various molar ratios, and 6 conventional solvents as absorbents for removal of siloxanes from model biogas stream. The screening was achieved
View All Related Papers

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