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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 Segment

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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This Item	236802	60742	60744
Supelco 288519 Silica gel	Supelco 236802 Silica gel	Supelco 60742 Silica gel	Supelco 60744 Silica gel
description high-purity grade, pore size 60 Å, 5-25 μm particle size, without binder, suitable for thin layer chromatography (TLC)	description high-purity grade (Davisil Grade 636), pore size 60 Å, 35-60 mesh particle size	description high-purity grade, 60Å, 35-60 mesh particle size	description high-purity grade, suitable for column chromatography, 90Å, 15-25 μm
technique(s) thin layer chromatography (TLC): suitable	technique(s) LPLC: suitable	technique(s) LPLC: suitable	technique(s) LPLC: suitable
material silica gel 60 matrix, plastic support	material -	material -	material -
feature binder Organic Polymer, fluorescent indicator: no	feature -	feature -	feature -
pore size 60 Å pore size, 60 Å medium pore diameter, 0.75 cm³/g pore volume	pore size 0.75 cm³/g pore volume, 60 Å	pore size 0.8 cm³/g pore volume	pore size 90 Å mean pore size
Quality Level 100	Quality Level 100	Quality Level 100	Quality Level 100
surface area ~500 m²/g	surface area 480 m²/g	surface area 500 m²/g	surface area 400 m²/g , B.E.T

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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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