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403563 Sigma-Aldrich

Silica gel

high-purity grade (Merck Grade 10180), pore size 40 Å, 70-230 mesh particle size

Properties

Related Categories Analytical/Chromatography, E. Merck Irregular Silica Gel, Essential Chemicals, Merck Grades, Research Essentials,
grade   high-purity grade (Merck Grade 10180)
mfr. no.   Merck
particle size   63-200 μm
  70-230 mesh
pore size   ~0.68 cm3/g pore volume
  40 Å
surface area   750 m2/g
bp   2230 °C
mp   >1600 °C

Description

Features and Benefits

Small pore size and high surface area provide maximum capacity for small molecules

Packaging

1 kg in poly bottle

100 g in poly bottle

5 kg in fiber drum

Application

Silica gel was used to compare MCM-41 type mesoporous adsorbents.1

General description

Silica gel is a rigid 3D network of colloidal silica.2 It is exclusively used as a support material for the active titanium(III) centers in Ziegler-Natta catalysts. Silica gel allows a controlled fragmentation resulting in the formation of uniform polymer particles with narrow particle size distribution and high bulk density.3 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 extraction2

Legal Information

Merck is a trademark of Merck KGaA

Price and Availability

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