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Merck
CN

87682

Tetramethyl orthosilicate

purum, ≥98.0% (GC)

Synonym(s):

Tetramethoxysilane

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About This Item

Linear Formula:
Si(OCH3)4
CAS Number:
681-84-5
Molecular Weight:
152.22
UNSPSC Code:
12352103
NACRES:
NA.23
PubChem Substance ID:
329769595
EC Number:
211-656-4
Beilstein/REAXYS Number:
1699658
MDL number:
MFCD00008341

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InChI key

LFQCEHFDDXELDD-UHFFFAOYSA-N

InChI

1S/C4H12O4Si/c1-5-9(6-2,7-3)8-4/h1-4H3

SMILES string

CO[Si](OC)(OC)OC

vapor density

5.25 (vs air)

vapor pressure

13 hPa ( 20 °C)

grade

purum

assay

≥98.0% (GC)

form

liquid

Quality Level

200

bp

121-122 °C (lit.)

mp

−4 °C (lit.)

density

1.023 g/mL at 25 °C (lit.)

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Application

Used in the sol-gel synthesis of chromium-doped silicates and in the formation of hexagonal mesoporous silica layers.

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Danger

Hazard Classifications

Acute Tox. 1 Inhalation - Eye Dam. 1 - Flam. Liq. 3 - Skin Irrit. 2

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

78.8 °F - closed cup

flash_point_c

26 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
BCCJ3268
BCCF9753
BCCB0710
BCBZ5464
BCBW8878

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Zian Lin et al.
Chemical communications (Cambridge, England), 47(34), 9675-9677 (2011-07-30)
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Langmuir : the ACS journal of surfaces and colloids, 26(6), 4152-4159 (2009-12-17)
We report an elegant and simple method to fabricate uniform silica films with controlled thickness, roughness, and hydrophilicity using nanogram quantities of silicatein, a protein involved in silica synthesis in sponges. The formation of uniform silica films was achieved by
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Elizabeth M Lambert et al.
Angewandte Chemie (International ed. in English), 49(24), 4100-4103 (2010-04-29)
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Journal of chromatography. A, 1218(7), 1011-1015 (2011-01-14)
C16 modified and ground monolithic silica aerogel particles in submicrometer size, as a new type of stationary phase was prepared and integrated in polydimethylsiloxane (PDMS) microchip. The aerogel particles were packed into the microfluidic channel using a simple procedure, which
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Journal of the American Chemical Society, 134(26), 10998-11005 (2012-06-26)
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