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218472

Sigma-Aldrich

Tetramethyl orthosilicate

98%

Synonyma:

Tetramethoxysilane

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About This Item

Lineární vzorec:
Si(OCH3)4
Číslo CAS:
681-84-5
Molekulová hmotnost:
152.22
Beilstein/REAXYS Number:
1699658
EC Number:
211-656-4
MDL number:
MFCD00008341
UNSPSC Code:
12352103
PubChem Substance ID:
24853068
NACRES:
NA.23

vapor density

5.25 (vs air)

vapor pressure

13 hPa ( 20 °C)

assay

98%

form

liquid

refractive index

n20/D 1.368 (lit.)

bp

121-122 °C (lit.)

mp

−4 °C (lit.)

density

1.023 g/mL at 25 °C (lit.)

SMILES string

CO[Si](OC)(OC)OC

InChI

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

InChI key

LFQCEHFDDXELDD-UHFFFAOYSA-N

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Application

Tetramethyl orthosilicate (TMOS) is popularly used in the sol-gel synthesis of silicates1 and chromium-doped silicates and in the formation of hexagonal mesoporous silica layers.
Used in the sol-gel synthesis of chromium-doped silicates and in the formation of hexagonal mesoporous silica layers.

signalword

Danger

Hazard Classifications

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

Storage Class

3 - Flammable liquids

wgk_germany

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

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Osvědčení o analýze (COA)

Lot/Batch Number
BCCJ3268
BCCF9753
BCCB0710
BCBZ5464
BCBW8878

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