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Ethyltriacetoxysilane

Ethyltriacetoxysilane structure

CAS No:
17689-77-9
Formula:
C8H14O6Si
Chemical Name:
Ethyltriacetoxysilane
Synonyms:
Silanetriol,1-ethyl-,1,1,1-triacetate;Silanetriol,ethyl-,triacetate;Ethyltriacetoxysilane;Triacetoxyethylsilane;Ethylsilanetriol triacetate;Tris(acetyloxy)ethylsilane;AC 3034;E 6345;ES 23;Wacker Crosslinker ES 23;[Diacetyloxy(ethyl)silyl] acetate;862207-18-9
Categories:
Chemical Reagents > Organic Reagents

Description

Colorless or yellowish transparent liquidEthyltriacetoxysilane (ETAS) is a clear to yellowish liquid with acrid odor of acetic acid (vinegar). It hydrolyzes in the presence of moisture (acetic acid is released) to form silanols, which can react with themselves to pro-duce siloxanes or bind to inorganic substrates.It is used as curing agent in acetoxy crosslinking RTV-1 sealant formulations. Within the curing reaction acetic acid is produced as a byproduct.

Liquid; WetSolid, Liquid

Ethyltriacetoxysilane Basic Attributes

Molecular Weight：

234.28

Exact Mass：

234.28

EC Number：

241-677-4

UNII：

38023A64VV

DSSTox ID：

DTXSID3027792

HScode：

29319090

Characteristics

PSA：

78.9

XLogP3：

1.90

Density：

1.143 g/cm³

Melting Point：

7-9 °C

Boiling Point：

107-108 °C @ Press: 8 Torr

Flash Point：

224 °F

Refractive Index：

n 20/D 1.411(lit.)

Water Solubility：

Hydrolyzes in water.

Safety Information

Packing level：

III

Hazard category：

Transport codes：

UN 3265 8/PG 2

wgk germany：

hazard class code：

safety instructions：

26-36/37/39-45-20

Marks：

Precautionary statement(s)：

P260, P264, P270, P280, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P309+P311, P310, P321, P330, P363, P405, P501

Hazard Statements：

H302

GHS Classification：

|Danger|H302 (85.19%): Harmful if swallowed [Warning Acute toxicity, oral]|P260, P264, P270, P280, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P330, P363, P405, and P501|Aggregated GHS information provided by 384 companies from 14 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H302: Harmful if swallowed [Warning Acute toxicity, oral]|P260, P264, P270, P280, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P309+P311, P310, P321, P330, P363, P405, and P501

Ethyltriacetoxysilane Use and Manufacturing

Uses

Intermediates

Adhesives and sealants

Production

1,000,000 - 10,000,000 lb

Manufacturing Info：

All other basic inorganic chemical manufacturing|Silanetriol, 1-ethyl-, 1,1,1-triacetate: ACTIVE

Computed Properties

Molecular Weight:234.28
Hydrogen Bond Acceptor Count:6
Rotatable Bond Count:7
Exact Mass:234.05596470
Monoisotopic Mass:234.05596470
Topological Polar Surface Area:78.9
Heavy Atom Count:15
Complexity:234
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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