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Trichlor(octadecyl)silan
OCTADECYLTRICHLOROSILANE · Silane, trichlorooctadecyl- · ODTS · Trichlorosilyloctadecane · TRICHLOROOCTADECYLSILANE · DK041 · CO9750 · TRICHLOROSTEARYLSILANE
Identifikatoren & physikalische Daten
| CAS No. | 112-04-9 |
|---|---|
| Summenformel | C18H37Cl3Si |
| Durchschnittliche Molmasse | 387,9 g/mol |
| Monoisotopische Masse | 386,17301075 g/mol |
| SMILES | CCCCCCCCCCCCCCCCCC[Si](Cl)(Cl)Cl |
| InChIKey | PYJJCSYBSYXGQQ-UHFFFAOYSA-N |
| PubChem CID | 8157 |
| EC No. | 203-930-7 |
| DTXSID | DTXSID50868051 |
| Lokaler Name | Trichlor(octadecyl)silan |
Chemische & physikalische Eigenschaften
| Polarare Oberfläche (TPSA) | 0 |
|---|---|
| H-Brücken-Donoren | 0 |
| H-Brücken-Akzeptoren | 0 |
| Frei drehbare Bindungen | 16 |
| Schwere Atome | 22 |
| Formalladung | 0 |
| Komplexität | 217 |
| Stoffklassen | Toxic Gases & Vapors -> ChlorosilanesCorrosives |
| Dichte | 0.984 g/cu cm at 25 °C0.984 @25 °C0.984 g/mL at 25 °C(lit.) |
| Color/Form | Water-white liquid |
| Löslichkeit | Soluble in benzene, ethyl ether, heptane, and perchloroethyleneChloroform (Sparingly), Dichloromethane (Slightly)Decomposes in water. |
| Corrosivity | Corrosive |
| Flammpunkt | 193 °F (NFPA, 2010)193 °F (89 °C) (closed cup) |
| Siedepunkt | 380 °CBP: 223 °C at 10 mm Hg223 °C10 mm Hg(lit.) |
| Decomposition | The silanes decomp at elevated temp to liberate hydrogen and deposit a high purity silicon, which leads to some of the principal uses of silanes. /Silanes/Hydrogen chloride and phosgene gases may formboth are toxic and irritating.When heated to decomposition it emits toxic fumes of /chlorine/. |
| Schmelzpunkt | about 20 °C22°C |
| Dampfdruck | 0.00000992 [mmHg]<5 mm Hg ( 20 °C) |
| Brechungsindex | Index of refraction = 1.4602 at 20 °C/Dn20/D 1.459(lit.) |
| Physical Description | Octadecyltrichlorosilane appears as a colorless liquid with a pungent odor. Decomposed by water to hydrochloric acid with the evolution of heat. Corrosive to metals and tissue. Used to make various silicon containing compounds.Colorless liquid with a pungent odor[CAMEO] |
| Dampfdichte | >1 (vs air) |
| Lagerbedingungen | Store below +30°C. |
| Aggregatzustand | A liquid |
| Wichte | 0.984 |
| Farbe | White or Colorless to Light yellow |
| BRN | 1778847 |
| Stabilität | Stable. Reacts violently with water. Incompatible with strong acids, strong bases, strong oxidizing agents. Air-sensitive. Combustible. |
| InChI | 1S/C18H37Cl3Si/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-22(19,20)21/h2-18H2,1H3 |
| InChIKey | PYJJCSYBSYXGQQ-UHFFFAOYSA-N |
| SMILES | CCCCCCCCCCCCCCCCCC[Si](Cl)(Cl)Cl |
| LogP (Verteilungskoeffizient) | 6 |
| CAS Datenbank | 112-04-9(CAS DataBase Reference) |
| NIST chemische Informationen | Silane, trichlorooctadecyl-(112-04-9) |
| EPA chemische Informationen | Silane, trichlorooctadecyl- (112-04-9) |
Sicherheit & Vorschriften
| GHS-Einstufung | This chemical does not meet GHS hazard criteria for 1.2% (1 of 81) of reports.DangerH314 (98.8%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]P260, P261, P264, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P319, P321, P363, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 81 reports by companies from 13 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| Hazards Identification | Water-reactive material (WR) |
| Regulatorische Informationen | Chemical: Silane, trichlorooctadecyl-REACH registered substance: Trichloro(octadecyl)silane (EC: 203-930-7)Trichlorooctadecylsilane: Does not have an individual approval but may be used under an appropriate group standardThe New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.) |
| DOT-Kennzeichnung | Corrosive |
| Brandgefahren | Excerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:· Combustible material: may burn but does not ignite readily. |
| Brandpotenzial | Octadecyltrichlorosilane is a combustible liquid.Self-ignites in air. /Chlorosilanes/With a little ammonia, it forms a self-igniting product. |
| Gesundheitsgefahren | Excerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:· TOXIC and/or CORROSIVEinhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. |
| Gefahrenübersicht | Reacts violently with water, steam, or moisture evolving heat, hydrogen gas (combustible), and hydrogen chloride gas (corrosive)Produces hydrogen chloride gas on contact with air |
Anwendungen & Verwendung
Verwenden
n-Octadecyltrichlorosilane is used in semiconductor industry to form self-assembled monolayer thin films on silicon dioxide substrates. Used in molecular electronics, as thin insulating gates in Metal-Insulator-Semiconductor Field-Effect Transistors. It is also used in platinum catalyzed synthesis.