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Cas Database |
| Name |
Trimethoxyoctylsilane |
EINECS | 221-338-7 |
| CAS No. | 3069-40-7 | Density | 0.884 g/cm3 |
| PSA | 27.69000 | LogP | 3.22500 |
| Solubility | 59-1000g/L at 20℃ | Melting Point |
N/A |
| Formula | C11H26O3Si | Boiling Point | 191.5 °C at 760 mmHg |
| Molecular Weight | 234.411 | Flash Point | 102.2 °C |
| Transport Information | UN 2924 | Appearance | Colorless transparent liquid |
| Safety | 23-24/25 | Risk Codes | 36/38 |
| Molecular Structure |
|
Hazard Symbols | R36/38:Irritating to eyes and skin.; |
| Synonyms |
JH-N 318;KBM 3083;Octyltrimethoxysilane;Si 108;Silan 108;XC 95-738;n-Octyltrimethoxysilane; |
Article Data | 16 |
Trimethoxyoctylsilane Synthetic route
| Conditions | Yield |
|---|---|
| With 2C4H9O(1-)*Ni(2+)*(x)KCl In tetrahydrofuran at 20℃; for 4h; Inert atmosphere; Sealed tube; | 95% |
| Conditions | Yield |
|---|---|
| With 2C4H9O(1-)*Ni(2+)*(x)KCl In tetrahydrofuran at 20℃; for 12h; Glovebox; Inert atmosphere; | 89% |
| Stage #1: oct-1-ene With Wilkinson's catalyst for 0.0833333h; Stage #2: trimethoxysilane at 90℃; for 5h; | 75.9% |
| With cobalt pivalate; [1,3-bis(2,4,6-trimethylphenyl)imidazol]-2-ylidene In neat (no solvent) at 80℃; for 24h; Inert atmosphere; | 40% |
| Conditions | Yield |
|---|---|
| With pyridine |
| Conditions | Yield |
|---|---|
| Stage #1: oct-1-ene With trichlorosilane; dihydrogen hexachloroplatinate In isopropyl alcohol; toluene at 50℃; Stage #2: methanol With urea In isopropyl alcohol; toluene at 50℃; |
- 592-99-4, 7642-15-1, 14850-23-8
4-octene
- 3069-40-7
n-octyltrimethoxysilane
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: HSiCl3, H2PtCl6*6H2O / benzene; tetrahydrofuran / 110 °C / 73550.8 Torr 2: pyridine View Scheme |
| Conditions | Yield |
|---|---|
| With 4'-phenyl-2,2':6',2-terpyridine; cobalt(II) 2-ethylhexanoate at 60℃; for 3h; Sealed tube; |
| Conditions | Yield |
|---|---|
| With potassium methanolate In methanol at 20℃; for 3h; Schlenk technique; Inert atmosphere; | 85% |
- 3069-40-7
n-octyltrimethoxysilane
| Conditions | Yield |
|---|---|
| With sodium hydroxide In water for 4h; Reflux; |
- 3069-40-7
n-octyltrimethoxysilane
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: potassium methanolate / methanol / 3 h / 20 °C / Schlenk technique; Inert atmosphere 2: [4,4′-bis(1,1-dimethylethyl)-2,2′-bipyridine-N1,N1′]bis{3,5-difluoro-2-[5-(trifluoromethyl)-2-pyridinyl-κN]phenyl-κC}iridium(III) hexafluorophosphate / dimethyl sulfoxide / 24 h / 20 °C / Schlenk technique; Inert atmosphere; Irradiation View Scheme |
Trimethoxyoctylsilane Specification
The IUPAC name of N-Octyltrimethoxysilane is Trimethoxy(octyl)silane. With the CAS registry number 3069-40-7, it is also named as Silane, trimethoxyoctyl-. The product's categories are Alkyl; Alkoxy Silanes; Hydrophobing Agents. Besides, this chemical is colorless transparent liquid and moisture sensitive which should be closed in a cool, dry place. In addition, its molecular formula is C11H26O3Si and its molecular weight is 234.41.
The other characteristics of N-Octyltrimethoxysilane can be summarized as: (1)EINECS: 221-338-7; (2)ACD/LogP: 3.86; (3)# of Rule of 5 Violations: 0; (4)ACD/LogD (pH 5.5): 3.86; (5)ACD/LogD (pH 7.4): 3.86; (6)ACD/BCF (pH 5.5): 501.66; (7)ACD/BCF (pH 7.4): 501.66; (8)ACD/KOC (pH 5.5): 2982.33; (9)ACD/KOC (pH 7.4): 2982.33; (10)H bond acceptors: 3; (11)H bond donors: 0; (12)Freely Rotating Bonds: 10; (13)Polar Surface Area: 27.69 Å2; (14)Index of Refraction: 1.419; (15)Molar Refractivity: 66.96 cm3; (16)Molar Volume: 264.9 cm3; (17)Polarizability: 26.54×10-24cm3; (18)Surface Tension: 24.2 dyne/cm; (19)Density: 0.884 g/cm3; (20)Flash Point: 102.2 °C; (21)Enthalpy of Vaporization: 41.02 kJ/mol; (22)Boiling Point: 191.5 °C at 760 mmHg; (23)Vapour Pressure: 0.714 mmHg at 25 °C.
Uses of N-Octyltrimethoxysilane: it is widely used in many aspects. It is the single dominant intermediate-chain alkyl silane additives and surface treatment agent. Furthermore, this chemical is used as surface treatment agent, which can produce hydrophobic materials such as concrete, glass, inorganic coating or organic filler. And it also has a moisture-proof, corrosion-resistant properties.
When you are using this chemical, please be cautious about it as the following: it is irritating to eyes and skin. Please do not breathe vapour. Moreover, you should avoid contact with skin and eyes.
People can use the following data to convert to the molecule structure.
(1)SMILES:O(C)[Si](OC)(OC)CCCCCCCC
(2)InChI:InChI=1/C11H26O3Si/c1-5-6-7-8-9-10-11-15(12-2,13-3)14-4/h5-11H2,1-4H3
(3)InChIKey:NMEPHPOFYLLFTK-UHFFFAOYAG
(4)Std. InChI:InChI=1S/C11H26O3Si/c1-5-6-7-8-9-10-11-15(12-2,13-3)14-4/h5-11H2,1-4H3
(5)Std. InChIKey:NMEPHPOFYLLFTK-UHFFFAOYSA-N
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