Gel de silice, haute pureté (puriss ), pore size 60 ? à, maille 70-230, pour chromatographie des colonnes

Code: 60740-500g D2-231

Non disponible en dehors du Royaume-Uni et de l'Irlande

Application

Silica gel may be used in separation of single-walled carbon nanotube (SWNT) by simple filtration.

General description

Silica gel is ...


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$334.95 500G
$401.94 inc. VAT
DEMANDER

Non disponible en dehors du Royaume-Uni et de l'Irlande

Application

Silica gel may be used in separation of single-walled carbon nanotube (SWNT) by simple filtration.

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. Silica gel allows a controlled fragmentation leading to form uniform polymer particles with narrow particle size distribution and high bulk density. Silica gel is classified as below:a. Aquagel - pores are filled with waterb. Xerogel - by the process of evaporation, aqueous phase in the pores are removedc. Aerogel - solvent removed by supercritical extraction

anion tracesnitrate (NO3-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg, chloride (Cl-): ≤100 mg/kg
bp2230 °C
cation tracesFe: ≤20 mg/kg, Pb: ≤5 mg/kg, Cu: ≤5 mg/kg, Zn: ≤5 mg/kg
description

activity acc. to Brockmann and Schodder 2 - 3

formpowder
gradehigh-purity grade (puriss)
InChI keyVYPSYNLAJGMNEJ-UHFFFAOYSA-N
InChI1S/O2Si/c1-3-2
manufacturer/tradenameSigma-Aldrich
matrix active groupsilica
matrixSilica
mp>1600 °C
particle size70-230 mesh, 63-200 µm
pH6.0-7.5 (25 °C, 10% in H2O)
pore size60 Å, 0.8 cm3/g pore volume
Quality Level100
separation techniquehydrophilic interaction (HILIC)
SMILES stringO=[Si]=O
surface area500 m2/g
technique(s)LPLC: suitable
Cas Number112926-00-8
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