| Identification | More | [Name]
Triethoxyoctylsilane | [CAS]
2943-75-1 | [Synonyms]
1-(TRIETHOXYSILYL)-OCTAN
1-TRIETHOXYSILYL OCTANE
N-OCTYLTRIETHOXYSILANE
OCTYLTRIETHOXYSILANE
TRIETHOXY-N-OCTYLSILANE
TRIETHOXY-OCTYLSILANE
a137(couplingagent)
CO9835
Dynasylan OCTEO
dynasylanocteo
n-octyltriethoaysilane(30m3)
n-octyltriethoaysilane(30m35)
n-octyltriethoaysilane(30m3m)
n-octyltriethoaysilane(32m18)
Prosil 9202
prosil9202
prosil9234
Silane, triethoxyoctyl-
silquesta137
Triethoxy-n-octyltriethoxysilane | [EINECS(EC#)]
220-941-2 | [Molecular Formula]
C14H32O3Si | [MDL Number]
MFCD00039883 | [Molecular Weight]
276.49 | [MOL File]
2943-75-1.mol |
| Chemical Properties | Back Directory | [Appearance]
Colorless transparent liquid | [Melting point ]
<-40°C | [Boiling point ]
84-85 °C0.5 mm Hg(lit.)
| [density ]
0.88 g/mL at 25 °C(lit.)
| [vapor pressure ]
0.1 hPa (20 °C) | [refractive index ]
n20/D 1.417(lit.)
| [Fp ]
210 °F
| [storage temp. ]
Store below +30°C. | [solubility ]
Acetonitrile (Slightly), Chloroform (Slightly) | [form ]
liquid | [color ]
Colorless to Almost colorless | [Specific Gravity]
0.875 | [Water Solubility ]
reacts | [Hydrolytic Sensitivity]
7: reacts slowly with moisture/water | [Sensitive ]
Moisture Sensitive | [BRN ]
2325287 | [InChIKey]
MSRJTTSHWYDFIU-UHFFFAOYSA-N | [LogP]
-0.3-6.41 at 20℃ | [CAS DataBase Reference]
2943-75-1(CAS DataBase Reference) | [NIST Chemistry Reference]
N-Octyltriethoxysilane(2943-75-1) | [EPA Substance Registry System]
2943-75-1(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S37/39:Wear suitable gloves and eye/face protection . | [WGK Germany ]
1
| [RTECS ]
VV6695500
| [F ]
10-21 | [TSCA ]
Yes | [HS Code ]
29310095 | [Toxicity]
LD50 orally in Rabbit: 5110 mg/kg LD50 dermal Rabbit 5142 mg/kg |
| Questions And Answer | Back Directory | [Description]
Triethoxyoctylsilane is a monomeric medium-chain alkylfunctional silane. It is a clear colourless liquid and soluble in common non-polar organic solvent.
Triethoxyoctylsilane can be used as a surface modifier to generate hydrophobicity (e.g. on concrete, glass, inorganic pigments, or mineral fillers).
When diluted with an appropriate solvent, it can be used in the formulation of water repellent products. Upon proper application, the formulated product will penetrate and provide water repellency by chemically reacting with the cementitious substrate. Treated substrates are hydrophobic and retain their original appearance.
|
| Hazard Information | Back Directory | [Chemical Properties]
Colorless transparent liquid | [Uses]
Triethoxy(octyl)silane is a hydrophobization agent used to limit coalescence in solid-stabilized emulsions. | [Definition]
ChEBI: Octyltriethoxysilane is an organosilicon compound. | [General Description]
Triethoxy(octyl)silane (TEOS) is an alkoxide organosilane with four ethyl ester sidechains. It is used as a self-assembled monolayer and provides a hydrophobic coating with low surface energy. The water contact angle is in the range of 150-170°. |
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