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HCID 68337Erstellt: 25. Oktober 2026

Diethylsilan

(C2H5)2SiH2 · 3-Silapentane · diethyl-silan · Diethylsilane · diethylsilicon · Silane, diethyl- · Diethylsilane,97% · Diethylsilane,98+%

https://huagongshe.com/de/chemical/68337

Molekülstruktur von Diethylsilan

Identifikatoren & physikalische Daten

CAS No.542-91-6
SummenformelC4H12Si
Durchschnittliche Molmasse88,22 g/mol
Monoisotopische Masse88,07082691 g/mol
SMILESCC[SiH2]CC
InChIKeyUCXUKTLCVSGCNR-UHFFFAOYSA-N
PubChem CID68337
EC No.208-834-9
DTXSIDDTXSID20870601
Lokaler NameDiethylsilan

Chemische & physikalische Eigenschaften

Polarare Oberfläche (TPSA)0
H-Brücken-Donoren0
H-Brücken-Akzeptoren0
Frei drehbare Bindungen2
Schwere Atome5
Formalladung0
Komplexität11,1
StoffklassenMetals -> Metalloid Compounds (Silicon)
SpringerMaterials PropertiesDielectric constant
Dampfdruck207.52 [mmHg]
Physical DescriptionLiquid[Merck Index] Clear colorless liquid[MSDSonline]
Schmelzpunkt-132°C
Siedepunkt56 °C (lit.)
Dichte0.681 g/mL at 25 °C (lit.)
Brechungsindexn20/D 1.391(lit.)
Flammpunkt−20 °F
Lagerbedingungenunder inert gas (nitrogen or Argon) at 2-8°C
LöslichkeitMiscible with terahydrofuran, diethyl ether, 1,4-dioxane and benzene.
Aggregatzustandliquid
Wichte0.683
Merck14,3128
BRN1730902
InChI1S/C4H12Si/c1-3-5-4-2/h3-5H2,1-2H3
InChIKeyUCXUKTLCVSGCNR-UHFFFAOYSA-N
SMILESCC[SiH2]CC
CAS Datenbank542-91-6(CAS DataBase Reference)
EPA chemische InformationenSilane, diethyl- (542-91-6)

Sicherheit & Vorschriften

GHS-EinstufungDangerH225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 70 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
GefahrenübersichtAn irritantHighly flammableOrganic silicon compounds are generally of low toxicity. Acute and chronic toxicity not fully known[Alfa Aesar MSDS]
Hazard Classes and CategoriesFlam. Liq. 2 (100%)
Wassergefährdungsklasse (WGK)1
TSCA-Inventar-StatusTSCA listed
UN-TransportnummerUN 1993 3/PG 2
R-Sätze (R)11
GefahrensymboleF
Sicherheitshinweise (S)16-23-24/25
Gefahrenklasse3Flam. Liq. 2
VerpackungsgruppeII
Lagerklasse3 - Flammable liquids

Anwendungen & Verwendung

Verwenden

Diethylsilane is used as a precursor to prepare (3-allylsulfanyl-propyl)-diethyl-silane by using (Ph3P)3RhCl as reagent. It is also used in the chemical vapor deposition of SiO2 for microelectronics.