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Merck
CN

89829

Tetraethyl orthosilicate

analytical standard

Synonym(s):

Orthosilicic acid tetraethyl ester, TEOS, Tetraethoxysilane

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About This Item

Linear Formula:
Si(OC2H5)4
CAS Number:
78-10-4
Molecular Weight:
208.33
UNSPSC Code:
41116107
Beilstein/REAXYS Number:
1422225
MDL number:
MFCD00009062

Key Documents

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InChI key

BOTDANWDWHJENH-UHFFFAOYSA-N

SMILES string

CCO[Si](OCC)(OCC)OCC

InChI

1S/C8H20O4Si/c1-5-9-13(10-6-2,11-7-3)12-8-4/h5-8H2,1-4H3

grade

analytical standard

vapor density

7.2 (vs air)

vapor pressure

<1 mmHg ( 20 °C)

assay

≥99.0% (GC)

form

liquid

shelf life

limited shelf life, expiry date on the label

refractive index

n20/D 1.382 (lit.), n20/D 1.382-1.384

bp

168 °C (lit.)

density

0.933 g/mL at 20 °C (lit.)

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Application

Commonly used as a precursor to prepare xerogel
Will interact with dodecylamine in the formation of intercalation compounds of H+-magadiite and used in a study of mixed-metal bioactive glasses.

Other Notes

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Warning

Hazard Classifications

Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

113.0 °F - closed cup

flash_point_c

45 °C - closed cup

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
BCCH9431
BCCD2949

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