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Merck
CN

288500

Silica gel

high-purity grade, pore size 60 Å, 2-22 μm particle size distribution, without binder, suitable for thin layer chromatography (TLC)

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About This Item

CAS Number:
7631-86-9
NACRES:
NC.07
PubChem Substance ID:
24857346
UNSPSC Code:
41115711
EC Number:
231-545-4
MDL number:
MFCD00011232

Key Documents

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Product Name

Silica gel, high-purity grade, pore size 60 Å, 2-22 μm particle size distribution, without binder, suitable for thin layer chromatography (TLC)

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

InChI

1S/O2Si/c1-3-2

SMILES string

O=[Si]=O

grade

high-purity grade

form

powder

manufacturer/tradename

Sigma-Aldrich

technique(s)

thin layer chromatography (TLC): suitable

surface area

~500 m2/g

impurities

≤0.01% Fe3+

particle size distribution

2-22 μm

pore size

60 Å pore size

pH

~6.8 (10% in aq. suspension)

bp

2230 °C

mp

>1600 °C

anion traces

chloride (Cl-): ≤0.01%

Quality Level

100

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Application

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

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

Storage Class

11 - Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN5062
BCCN3857
BCCK8027
BCCJ7642
BCCG6019

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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)

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