44237

Dodecyltriethoxysilane

technical

• Synonym(s): 1-(Triethoxysilyl)dodecane, Dodecyltriethoxysilane, Triethoxydodecylsilane
• Empirical Formula (Hill Notation): C₁₈H₄₀O₃Si
• CAS Number: 18536-91-9
• Molecular Weight: 332.59
• Beilstein: 2414223
• EC Number: 242-409-9
• MDL number: MFCD00048437
• UNSPSC Code: 12352103
• PubChem Substance ID: 57650220
• NACRES: NA.23

Properties

• grade: technical
• form: liquid
• density: 0.875 g/mL at 20 °C (lit.)
• SMILES string: CCCCCCCCCCCC[Si](OCC)(OCC)OCC
• InChI: 1S/C18H40O3Si/c1-5-9-10-11-12-13-14-15-16-17-18-22(19-6-2,20-7-3)21-8-4/h5-18H2,1-4H3
• InChI key: YGUFXEJWPRRAEK-UHFFFAOYSA-N

Description

General description

Dodecyltriethoxysilane (DTES) is an organosilane, which is used as a coupling agent. It forms alkylsiloxane based films that can be used to tune the wettability and facilitate a variety of surfaces with hydrophobicity.[1]

Reaction between dodecene and triethoxysilane yields dodecyltriethoxysilane. 1

Application

A study reports the use of dodecyltriethoxysilane to form a silica nanofluid which alters the water contact angle of an oil-wet carbonate substrate. {68}

Dodecyltriethoxysilane can be used in the surface treatment of calcite crystals for the determination of the effect of wettability with the incorporation of nanoparticles.[2][3] It may be electrodeposited with tetraethoxysilane, which can be used as an anti-corrosive coating on mild steel.[4]

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H315 - H319 - H335
• Precautionary Statements: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 3
• Flash Point(F): 230.0 °F - closed cup
• Flash Point(C): 110 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves