Octadecyltrimethoxysilane
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Octadecyltrimethoxysilane
structure -
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CAS No:
3069-42-9
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Formula:
C21H46O3Si
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Chemical Name:
Octadecyltrimethoxysilane
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Synonyms:
Silane,trimethoxyoctadecyl-;Trimethoxyoctadecylsilane;Stearyltrimethoxysilane;Octadecyltrimethoxysilane;LSX 6817;TSL 8185;n-Octadecyltrimethoxysilane;TSL 8186;M 1;M 1 (silane);AY 43-218MC;Dynasylan 9118;O 0256;KH 311;1253692-82-8
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CAS No:
Characteristics
27.7
7.12600
light yellow liquid.
0.885 g/cm3
13-17 °C
170 °C @ Press: 0.1 Torr
284 °F
1.440
Safety Information
NONH for all modes of transport
1
36/37/38
26-36
Xi
Stable. Incompatible with strong oxidizing agents. Moisture sensitive.
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
H315
|Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 73 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Octadecyltrimethoxysilane Use and Manufacturing
(1) 100 parts by weight of octadecyltrichlorosilane and 100 parts by weight of a petroleum ether solvent were added to the reaction vessel, bubbled with nitrogen, mechanically stirred;(2) at 30 ° C, 2 h was added dropwise to 25 parts by weight of methanol to carry out the reaction, After the addition, the mixture was stirred for 5 hours, and the reaction was neutralized with sodium ethoxide. The mixture was filtered and the solvent was removed under reduced pressure to obtain octadecyltrimethoxysilane crosslinking agent.claim 9, wherein the organoalkoxysilane is selected from:phenyloctyldialkoxysilane, dodecylmethyldialkoxysilane, ...dodecyltriethoxysilane, hexadecyltrimethoxysilane, 1-docosenyltriethoxysilane, n-octyltrimethoxysilane, or100 mg samples of nanoscale bohemite (300 nm from Sasol) were treated with one of the following solutions of...5. methoxydimethyloctylsilane, 6. hydroxy terminated poly(dimethylsiloxane), 7. (3-chloropropyl)triethoxysilane, 8. (3-chloropropyl)dimethoxymethylsilane, 9. octadecyltrimethoxysilane, 10. 3-aminopropyltriethoxysilane, 11. 3-(trimethoxysilyl)propylmethacrylate, 12. N-[3-(trimethoxysilyl)propyl]-ethylenediamine, and
For preparing hydrophobic coatings and self-assembled monolayers.
Silane, trimethoxyoctadecyl-: ACTIVE|PMN - indicates a commenced PMN (Pre-Manufacture Notices) substance.
Computed Properties
Molecular Weight:374.7
Hydrogen Bond Acceptor Count:3
Rotatable Bond Count:20
Exact Mass:374.32162186
Monoisotopic Mass:374.32162186
Topological Polar Surface Area:27.7
Heavy Atom Count:25
Complexity:249
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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