60735
硅胶
high-purity grade, 40, 70-230 mesh, suitable for column chromatography
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关于此项目
化学文摘社编号:
NACRES:
SB.52
PubChem Substance ID:
UNSPSC Code:
12352309
EC Number:
231-545-4
MDL number:
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
InChI
1S/O2Si/c1-3-2
SMILES string
O=[Si]=O
grade
high-purity grade
form
powder or crystals
technique(s)
LPLC: suitable
surface area
500 m2/g , approx.
matrix
Silica
matrix active group
silica
particle size
0.063-0.200 mm (70-230 mesh ASTM), 70-230 mesh
pore size
40 Å mean pore size
bp
2230 °C
mp
>1600 °C
suitability
suitable for column chromatography
separation technique
hydrophilic interaction (HILIC)
storage temp.
2-8°C
Quality Level
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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 water
b. Xerogel - by the process of evaporation, aqueous phase in the pores are removed
c. Aerogel - solvent removed by supercritical extraction
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
存储类别
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
法规信息
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Christopher A Dyke et al.
Journal of the American Chemical Society, 127(12), 4497-4509 (2005-03-24)
In this report, procedures are discussed for the enrichment of single-walled carbon nanotube (SWNT) types by simple filtration of the functionalized SWNTs through silica gel. This separation uses nanotube sidewall functionalization employing two different strategies. In the first approach, a
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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