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679259

Sigma-Aldrich

Tetramethyl orthosilicate

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

Synonyme(s) :

Tetramethoxysilane

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About This Item

Formule linéaire :
Si(OCH3)4
Numéro CAS:
681-84-5
Poids moléculaire :
152.22
Numéro Beilstein :
1699658
Numéro CE :
211-656-4
Numéro MDL:
MFCD00008341
Code UNSPSC :
12352103
ID de substance PubChem :
24885480
Nomenclature NACRES :
NA.23

Qualité

deposition grade

Densité de vapeur

5.25 (vs air)

Pression de vapeur

13 hPa ( 20 °C)

Pureté

≥98%
≥99.9% trace metals basis

Forme

liquid

Indice de réfraction

n20/D 1.368 (lit.)

Point d'ébullition

121-122 °C (lit.)

Pf

−4 °C (lit.)

Densité

1.023 g/mL at 25 °C (lit.)

Chaîne SMILES 

CO[Si](OC)(OC)OC

InChI

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

Clé InChI

LFQCEHFDDXELDD-UHFFFAOYSA-N

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Application

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

Pictogrammes

FlameSkull and crossbonesCorrosion
GHS02,GHS06,GHS05

Mention d'avertissement

Danger

Mentions de danger

H226,H315,H318,H330

Classification des risques

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

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

78.8 °F - closed cup

Point d'éclair (°C)

26 °C - closed cup

Équipement de protection individuelle

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

Certificats d'analyse (COA)

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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
Carmen Carrasquilla et al.
Journal of the American Chemical Society, 134(26), 10998-11005 (2012-06-26)
Structure-switching, fluorescence-signaling DNA and RNA aptamers have been reported as highly versatile molecular recognition elements for biosensor development. While structure-switching DNA aptamers have been utilized for solid-phase sensing, equivalent RNA aptamers have yet to be successfully utilized in solid-phase sensors
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
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
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.
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