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679259

Sigma-Aldrich

Tetramethyl orthosilicate

deposition grade, ≥98%, ≥99.9% trace metals basis

Sinónimos:

Tetramethoxysilane

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About This Item

Fórmula lineal:
Si(OCH3)4
Número de CAS:
681-84-5
Peso molecular:
152.22
Beilstein:
1699658
Número CE:
211-656-4
Número MDL:
MFCD00008341
Código UNSPSC:
12352103
ID de la sustancia en PubChem:
24885480
NACRES:
NA.23

grado

deposition grade

densidad de vapor

5.25 (vs air)

presión de vapor

13 hPa ( 20 °C)

Ensayo

≥98%
≥99.9% trace metals basis

Formulario

liquid

índice de refracción

n20/D 1.368 (lit.)

bp

121-122 °C (lit.)

mp

−4 °C (lit.)

densidad

1.023 g/mL at 25 °C (lit.)

cadena SMILES

CO[Si](OC)(OC)OC

InChI

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

Clave InChI

LFQCEHFDDXELDD-UHFFFAOYSA-N

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Aplicación

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

Palabra de señalización

Danger

Frases de peligro

H226,H315,H318,H330

Clasificaciones de peligro

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

Código de clase de almacenamiento

3 - Flammable liquids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

78.8 °F - closed cup

Punto de inflamabilidad (°C)

26 °C - closed cup

Equipo de protección personal

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

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Certificados de análisis (COA)

Lot/Batch Number
MKCS9865
MKCG1788
MKBN8236V
MKBN7452V
MKBJ8106V

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Zian Lin et al.
Chemical communications (Cambridge, England), 47(34), 9675-9677 (2011-07-30)
An inorganic-organic hybrid affinity monolithic column was synthesized by a novel "one-pot" approach. The resulting hybrid affinity monoliths have potential applications in specific recognition and enrichment of glycoproteins.
Stephan Altmaier et al.
Journal of separation science, 31(14), 2551-2559 (2008-07-12)
Silica-based monolithic columns were prepared for HPLC with systematic variations of the tetramethoxysilane (TMOS) and polyethylene oxide (PEO) content as reactants in a sol-gel process accompanied by phase separation. The resulting monoliths showed differences in the macropore and silica skeleton
Yan Fang et al.
Journal of chromatography. A, 1217(41), 6405-6412 (2010-09-03)
A simple capillary flow porometer (CFP) was assembled for through-pore structure characterization of monolithic capillary liquid chromatography columns in their original chromatographic forms. Determination of differential pressures and flow rates through dry and wet short capillary segments provided necessary information
Shota Miyazaki et al.
Journal of chromatography. A, 1218(15), 1988-1994 (2010-12-24)
Chromatographic properties of a new type of monolithic silica rod columns were examined. Silica rod columns employed for the study were prepared from tetramethoxysilane, modified with octadecylsilyl moieties, and encased in a stainless-steel protective column with two polymer layers between
Josef Planeta et al.
Journal of chromatography. A, 1217(36), 5737-5740 (2010-08-03)
The temperature effects during the sol-gel process and ageing of the silica-based monolith on the structure and separation efficiency of the capillary columns (100microm i.d., 150mm) for HPLC separations were studied. The tested columns were synthesized from a mixture of
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