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288519

Silica gel

Name: Silica gel
Brand: SIAL

high-purity grade, pore size 60 Å, 5-25 μm particle size, without binder, suitable for thin layer chromatography (TLC)

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About This Item

CAS Number:

112926-00-8

NACRES:

NB.21

PubChem Substance ID:

24857347

UNSPSC Code:

41115711

EC Number:

231-545-4

MDL number:

MFCD00011232

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Properties

Quality Level

100

material

plastic support, silica gel 60 matrix

grade

high-purity grade

form

powder

feature

binder Organic Polymer, fluorescent indicator: no

packaging

pkg of 250 g

manufacturer/tradename

Sigma-Aldrich

technique(s)

thin layer chromatography (TLC): suitable

surface area

~500 m²/g

impurities

≤0.001% Fe³⁺

particle size

5-25 μm

pore size

0.75 cm³/g pore volume, 60 Å medium pore diameter, 60 Å pore size

pH

~6.8 (10% in aq. suspension)

bp

2230 °C

mp

>1600 °C

anion traces

chloride (Cl^-): ≤0.003%

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Description

General description

Silica gel is a rigid 3D network of colloidal silica. It is exclusively used as a support material for the active titanium(III) centers in Ziegler-Natta catalysts. It allows a controlled fragmentation resulting in the formation of uniform polymer particles with narrow particle size distribution and high bulk density. Silica gel is classified as below:
a. Aquagel - pores are filled with water
b. Xerogel - by the process of evaporation, aqueous phase in the pores are removed
c. Aerogel - solvent removed by supercritical extraction

Application

Silica gel was used on glass plates to perform preparative thin layer chromatography.

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Storage Class

11 - Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

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Evidence of Phytoalexins in Cucumber Leaves Infected with Powdery Mildew following Treatment with Leaf Extracts of Reynoutria sachalinensis.

F. Daayf et al.

Plant physiology, 113(3), 719-727 (1997-03-01)

Phenolic compounds extracted from cucumber (Cucumis sativus L.) leaves were separated and analyzed for their differential presence and fungitoxicity in relation to a prophylactic treatment with Milsana (Compo, Munster, Germany) against powdery mildew (Sphaerotheca fuliginea). Based on our extraction and

A simple method for production of pure silica from rice hull ash

Kalapathy, U., A. Proctor, and J. Shultz.

Bioresource Technology, 73, 257-262 (2000)

Silica gel supported zirconocene dichloride/methylalumoxane catalysts for ethylene polymerization: Effects of heterogenation on activity, polymer microstructure and product morphology.

Janiak, Christoph, and Bernhard Rieger.

Angew. Makromol. Chem., 215, 47-57 (1994)

Global Trade Item Number

SKU	GTIN
288519-250G	04061838512956