205389

Hexaméthyldisiloxane

≥98%

• Synonyme(s) : HMDSO
• Formule linéaire : (CH₃)₃SiOSi(CH₃)₃
• CAS Number: 107-46-0
• Poids moléculaire : 162.38
• Beilstein: 1736258
• Numéro CE : 203-492-7
• Numéro MDL: MFCD00008265
• Code UNSPSC : 12352103
• ID de substance PubChem : 24852329
• Nomenclature NACRES : NA.22

Propriétés

• Densité de vapeur: >1 (vs air)
• Niveau de qualité: 200
• Essai: ≥98%
• Forme: liquid
• Indice de réfraction: n20/D 1.377 (lit.)
• pb: 101 °C (lit.); 101 °C
• Pf: −59 °C (lit.)
• Densité: 0.764 g/mL at 20 °C (lit.)
• Chaîne SMILES: C[Si](C)(C)O[Si](C)(C)C
• InChI: 1S/C6H18OSi2/c1-8(2,3)7-9(4,5)6/h1-6H3
• Clé InChI: UQEAIHBTYFGYIE-UHFFFAOYSA-N

Description

Description générale

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. Addition of HMDSO to P₄S₁₀, improves its efficiency as thionating agent.

Application

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.

Informations sur la sécurité

• Pictogrammes: GHS02,GHS09
• Mention d'avertissement: Danger
• Mentions de danger: H225,H410
• Conseils de prudence: P210 - P233 - P240 - P241 - P242 - P273
• Classification des risques: Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 2
• Code de la classe de stockage: 3 - Flammable liquids
• Classe de danger pour l'eau (WGK): WGK 2
• Point d'éclair (°F): 21.2 °F - closed cup
• Point d'éclair (°C): -6 °C - closed cup
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter