Hexamethyldisiloxane(HMDSO) - ≥99% , CAS No.107-46-0

CAS: 107-46-0 Cat. No.: H105443 Formula: C₆H₁₈Si₂O Molecular Weight: 162.38 Beilstein Registry Number: 1736258 EC Number: 203-492-7

GRADE & PURITY ≥99%

Synonyms

Bistrimethylsilyl ether | Belsil DM 0.65 | HMDSO | Bis(trimethylsilyl)ether | DIMETHICONE | Fluka AG | Oxybis(trimethylsilane) | Bis(trimethylsilyl) ether | Bis(trimethylsilyl)oxide | Hexamethyl disiloxane

Storage

Room temperature,Argon charged,Desiccated

Shipped In

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Overview

Hexamethyldisiloxane (HMDSO), a linear polydisiloxane, is an organosilicon reagent commonly utilized as a source for plasma enhanced chemical vapor deposition (PE-CVD) of thin films of silicon compounds. It is also employed as a substitute to silane in silicon integrated circuit technology. Its dissociative ionization by electron impact has been studied by Fourier transform mass spectrometry. Synthesis of plasma-polymerized HMDSO thin films by atmospheric pressure glow (APG) discharge has been reported. Crystals of HMDSO at 148K are monoclinic.

Hexamethyldisiloxane can be used:

· To fabricate a gas diffusion layer (GDL) with controlled hydrophobic silicone nano-layer by the dry deposition process.

· To prepare silver nanoparticles coated with silica using arginine and glucose as the catalyst and the reducing agent, respectively.

Specifications

Synonyms

Bistrimethylsilyl ether | Belsil DM 0.65 | HMDSO | Bis(trimethylsilyl)ether | DIMETHICONE | Fluka AG | Oxybis(trimethylsilane) | Bis(trimethylsilyl) ether | Bis(trimethylsilyl)oxide | Hexamethyl disiloxane

Specifications & Purity

≥99%

Storage

Room temperature,Argon charged,Desiccated

Shipped In

FedEx DG Service

Purity

≥99%

Names and Identifiers

Pubchem Sid

508812494

Pubchem Sid Url

https://pubchem.ncbi.nlm.nih.gov/substance/508812494

Canonical Smiles

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

IUPAC Name

trimethyl(trimethylsilyloxy)silane

InChIKey

UQEAIHBTYFGYIE-UHFFFAOYSA-N

INCHI

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

Isomeric SMILES

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

WGK Germany

1

RTECS

JM9237000

UN Number

1993

Packing Group

II

Molecular Weight

162.38

Beilstein

1736258

Reaxy-Rn

1736258

Reaxys-RN_link_address

https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1736258&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organometallic compounds
    • Class Organometalloid compounds
      • Subclass Organosilicon compounds
        • Level5 Siloxanes
          • Level6 Disiloxanes

• Kingdom: Organic compounds
• Superclass: Organometallic compounds
• Class: Organometalloid compounds
• Subclass: Organosilicon compounds
• Intermediate Tree Nodes: Siloxanes
• Direct Parent: Disiloxanes
• Alternative Parents: Trialkylheterosilanes Organic metalloid salts Organic oxygen compounds Hydrocarbon derivatives
• Molecular Framework: Aliphatic acyclic compounds
• Substituents: Disiloxane - Trialkylheterosilane - Organoheterosilane - Organic metalloid salt - Organic oxygen compound - Hydrocarbon derivative - Organic salt - Aliphatic acyclic compound
• Description: This compound belongs to the class of organic compounds known as disiloxanes. These are organosilicon compounds with the general formula H[Si](R)(R')O[Si](H)(R'')R''' (R= organyl, R'-R'''= H or organyl).
• External Descriptors: organosiloxane

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: Slightly miscible with water.
• Sensitivity: Moisture sensitive.
• Refractive Index: 1.375
• Flash Point(°F): 32 °F
• Flash Point(°C): 0 °C
• Boil Point(°C): 101°C
• Melt Point(°C): -59°C
• Molecular Weight: 162.380 g/mol
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 2
• Exact Mass: 162.09 Da
• Monoisotopic Mass: 162.09 Da
• Topological Polar Surface Area: 9.200 Ų
• Heavy Atom Count: 9
• Formal Charge: 0
• Complexity: 76.200
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 1

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