CAS 4667-99-6 Triethoxychlorosilane (HCID 78398)

Names & identifiers

Preferred name: Triethoxychlorosilane
IUPAC: chloro(triethoxy)silane
English name: Triethoxychlorosilane
Molecular formula: C6H15ClO3Si
Molecular weight: 198.72

Names & synonyms

TriethoxychlorosilaneChlorotriethoxysilane4667-99-6Chloro(triethoxy)silaneSilane, chlorotriethoxy-MFCD00015124EINECS 225-112-9triethoxysilyl chlorideClSi(OEt)3triethoxy-chloro-silaneChlorotri(ethoxy)silaneChloro(triethoxy)silane #

Show more names

DK308DK789chlorotriethoxy-silanSilane,chlorotriethoxy-MonochlorotriethoxysilaneTriethoxychlorosilane, tech-95Chlorotriethoxysilane,Triethoxychlorosilane

Chlorotriethoxysilane, 98%SCHEMBL155200DTXSID3063548AKOS015915892FS-6342s17050SY057483C3354

Database identifiers

CAS: 4667-99-6
PubChem CID: 78398
DTXSID: DTXSID3063548
EC Number: 225-112-9
Nikkaji: J297.878D

Properties

Computed structural properties

Topological polar surface area: 27.7 Å²
Hydrogen bond donors: 0
Hydrogen bond acceptors: 3
Rotatable bonds: 6
Heavy atoms: 11
Formal charge: 0
Complexity: 84.8

Experimental & physicochemical properties

Chemical ClassesToxic Gases & Vapors -> Chlorosilanes

SpringerMaterials PropertiesChemical shift

Physical DescriptionColorless liquid; [Sigma-Aldrich MSDS]

Physicochemical properties

Melting point: -51 °C · -51°C
Boiling point: 156 · 156-157 °C(lit.)
Density: 1.012 g/mL · 1.012 g/mL at 25 °C(lit.)
refractive index: 20 · n20/D 1.3900(lit.)
Flash point: 117 °F · 117 °F
storage temp.: 2 · 2-8°C
solubility: Benzene, Chloroform
form: liquid
Specific Gravity: 1.0122 · 1.0122
color: Clear Colourless
Hydrolytic Sensitivity: 8 · 8: reacts rapidly with moisture, water, protic solvents
Stability: Moisture Sensitive
InChI: 1S/C6H15ClO3Si/c1-4-8-11(7,9-5-2)10-6-3/h4-6H2,1-3H3
InChIKey: JEZFASCUIZYYEV-UHFFFAOYSA-N
SMILES: CCO[Si](Cl)(OCC)OCC
CAS DataBase Reference: 4667 · 4667-99-6
EPA Substance Registry System: Silane, chlorotriethoxy- (4667-99-6)
UNSPSC Code: 12352001 · 12352001
NACRES: 22 · NA.22
Symbol(GHS): 2 · GHS02,GHS05
Signal word: Danger
Hazard statements: 226 · H226-H314
Precautionary statements: 210 · P210-P233-P240-P280-P303+P361+P353-P305+P351+P338
PPE: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
Hazard Codes: C
Risk Statements: 10 · 10-34-10/34
Safety Statements: 16 · 16-26-27-36/37/39
RIDADR: 2986 · UN 2986 8/PG 2
WGK Germany: 3 · 3
TSCA: TSCA listed
HazardClass: 8 · 8/3
PackingGroup: II
HS Code: 29319090 · 29319090
Storage Class: 3 · 3 - Flammable liquids
Hazard Classifications: 3 Skin · Flam. Liq. 3Skin Corr. 1B

Safety & regulation

GHS classification

GHS Classification · 4 items

Danger

H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]

P210, P233, P240, P241, P242, P243, P260, P264, P280, P301+P330+P331, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P316, P321, P363, P370+P378, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 62 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Hazards SummaryCauses burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; [Sigma-Aldrich MSDS]

Hazard Classes and CategoriesFlam. Liq. 3 (100%)

Safety & protection

Exposure Control and Personal Protection · 1 item

TIH (Toxic Inhalation Hazard) - Term used to describe gases and volatile liquids that are toxic when inhaled. Some are TIH materials themselves, e.g., chlorine, and some release TIH gases when spilled in water, e.g., chlorosilanes. [ERG 2016].

Toxicology

Adverse EffectsDermatotoxin - Skin burns.

Safety data

PPE: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
wgk: 3
tsca: TSCA listed
ridadr: UN 2986 8/PG 2
hs_code: 29319090
risk_code: 10-34-10/34
Signal word: Danger
Symbol(GHS): GHS02,GHS05
hazard_code: C
safety_code: 16-26-27-36/37/39
hazard_class: 8/3
Storage Class: 3 - Flammable liquids
packing_group: II
Hazard statements: H226-H314
Hazard Classifications: Flam. Liq. 3Skin Corr. 1B
Precautionary statements: P210-P233-P240-P280-P303+P361+P353-P305+P351+P338

Chemistry & industry

Uses & manufacturing

General Manufacturing InformationSilane, chlorotriethoxy-: ACTIVE

Applications

UsesChlorotriethoxysilaneis a useful research chemical. It is generally used as a silane coupling agent. It is used as a precursor for the precipitation of silicon.