Grundinformationen
- Standard-SMILES
CCO[Si](C)(C)OCC- InChIKey
YYLGKUPAFFKGRQ-UHFFFAOYSA-N- Summenformel
- C6H16O2Si
- Durchschnittliche Molmasse
- 148,28 g/mol
- Monoisotopische Masse
- 148,09195628
Überblick
Dimethyldiethoxysilane appears as a colorless liquid. Less dense than water and insoluble in water. Vapors heavier than air.
Namen und Bezeichner
- Bevorzugter Name
- Diethoxydimethylsilane
- IUPAC
- diethoxy(dimethyl)silane
- Lokaler Name
- Diethoxy(dimethyl)silan
- Englischer Name
- Diethoxydimethylsilane
- Summenformel
- C6H16O2Si
- Molmasse
- 148.28
Namen und Synonyme
Weitere Namen anzeigen
Datenbank-Bezeichner
- CAS
78-62-6- PubChem CID
- 62322
- DTXSID
DTXSID6052538- ChEMBL
CHEMBL3561087- UNII
- I3931J3ZJ2
- EC Number
- 201-127-6
- Nikkaji
- J36.477K
Eigenschaften
Berechnete Struktureigenschaften
- Polarare Oberfläche (TPSA)
- 18,5 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 2
- Frei drehbare Bindungen
- 4
- Schwere Atome
- 9
- Formalladung
- 0
- Komplexität
- 65,5
Experimentelle und physikochemische Eigenschaften
Physical Description
Dimethyldiethoxysilane appears as a colorless liquid. Less dense than water and insoluble in water. Vapors heavier than air.
Liquid
Physikochemische Eigenschaften
- Schmelzpunkt
- -97 °C · -97°C
- Siedepunkt
- 114 °C · 114 °C (lit.)
- Dichte
- 0.865 g/mL · 0.865 g/mL at 25 °C (lit.)
- Dampfdruck
- 7 · 7-7910Pa at 20-25℃
- Brechungsindex
- 20 · n20/D 1.381(lit.)
- Flammpunkt
- 53 °F · 53 °F
- storage temp.
- Flammables area
- Aggregatzustand
- liquid
- Wichte
- 0.939 · 0.939
- Farbe
- 25 · ≤25(APHA)
- Wasserlöslichkeit
- may decompose
- BRN
- 1736110 · 1736110
- Dielectric constant
- 3.22 · 3.2200000000000002
- InChI
- 1S/C6H16O2Si/c1-5-7-9(3,4)8-6-2/h5-6H2,1-4H3
- InChIKey
- YYLGKUPAFFKGRQ-UHFFFAOYSA-N
- SMILES
- CCO[Si](C)(C)OCC
- LogP
- -0.4 · -0.4-3 at 25℃
- CAS Datenbank
- 78 · 78-62-6(CAS DataBase Reference)
- NIST chemische Informationen
- Silane, diethoxydimethyl-(78-62-6)
- EPA chemische Informationen
- Silane, diethoxydimethyl- (78-62-6)
Sicherheit und Regulatorisches
GHS-Klassifizierung
GHS Classification
This chemical does not meet GHS hazard criteria for 2% (5 of 245) of reports.
Danger
H225 (98%): Highly Flammable liquid and vapor [Danger Flammable liquids]
P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P317, P319, P321, 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 245 reports by companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Danger
Gefahrenhinweise
Regulatory Information
Chemical: Silane, diethoxydimethyl-
Silane, diethoxydimethyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silane, diethoxydimethyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 23-05-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/24954
Diethoxydimethylsilane: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
The 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.)
Fire Hazards
Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:
· HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
Health Hazards
Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:
· Inhalation or contact with material may irritate or burn skin and eyes.
Reactivity Profile
These substances undergo chemical reactions only under relatively severe circumstances or in the presence of an effective catalyst that promotes reaction. They are resistant to ignition, although they may become flammable at very high temperatures. They will be resistant to oxidation/reduction, except in the most severe conditions. These materials may be nontoxic.
DOT Hazard Classification
Dimethyldiethoxysilane
UN2380
Class 3 Flammable and combustible liquid (49 eCFR § 173.120)
PG II: the degree of danger presented by the material is medium
Hazard Classes and Categories
Flam. Liq. 2 (98%)
Flammable liquids - Category 2
Flammable agents - 3rd degree
Sicherheit und Schutzausrüstung
Accidental Release Measures
· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.
· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.
First Aid
Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:
General First Aid:
Isolation and Evacuation
Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:
Immediate precautionary measure
Protective Action Criteria (PAC)
17 [mg/m3]
190 [mg/m3]
1100 [mg/m3]
Sicherheitsdaten
- wgk
- 2
- tsca
- TSCA listed
- ridadr
- UN 2380
- hs_code
- 29319090
- RTECS-Nr.
- VV3590000
- risk_code
- 11-36/38-20
- Toxizität
- LD50 oral in rat: 9280mg/kg
- hazard_code
- F,Xi,Xn
- safety_code
- 26-36-16
- hazard_class
- 3
- packing_group
- II
- Speicherklasse
- 3 - Flammable liquids
- Hazard Classifications
- Flam. Liq. 2Repr. 2
Chemie und Industrie
Verwendung und Herstellung
General Manufacturing Information
All Other Basic Inorganic Chemical Manufacturing
Silane, diethoxydimethyl-: ACTIVE
Anwendungen
VerwendenDiethoxydimethylsilane may be used to modify epoxy resin6 and the surfaces of pure silica and Pd/SiO2 hydrogen gas sensors. Surface modification results in enhanced gas sensing properties of the sensors. It may be used as a precursor for the synthesis of ultrafine SiC powder. Diethoxydimethylsilane is an intermediate silane useful for blocking hydroxyl and amino groups in organic synthesis reactions. This silylating step allows subsequent reactions to be carried out which would be adversely affected by the presence of active hydrogen in the hydroxyl or amine groups. Following the reaction step, hydroxyl or amine groups blocked with diethoxydimethylsilane may be recovered by a hydrolysis procedure. It is also used for preparing hydrophobic and release materials as well as enhancing flow of powders. Studies report its use as a precursor for ORMOSIL (Organically modified SILicates) and thin a-SiOxCyHz films.
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