288608
Silica gel Inorganic Sorbent
high-purity grade, 130-270 mesh
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关于此项目
化学文摘社编号:
UNSPSC Code:
12352309
PubChem Substance ID:
NACRES:
NB.21
EC Number:
231-545-4
MDL number:
产品名称
硅胶, high-purity grade, pore size 60 Å, 130-270 mesh, suitable for column chromatography
grade
high-purity grade
Quality Segment
form
powder
technique(s)
LPLC: suitable
surface area
~500 m2/g
matrix
Silica
matrix active group
silica
particle size
130-270 mesh
pore size
0.75 cm3/g pore volume, 60 Å
bp
2230 °C
mp
>1600 °C
suitability
suitable for column chromatography
separation technique
hydrophilic interaction (HILIC)
SMILES string
O=[Si]=O
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
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
Application
Silica gel has been used as a column material in the preparation of nanoscale iron oxide−based materials to be used in the catalysis of different hydrogenation reactions, which is monitored using gas chromatography (GC) technique.
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存储类别
11 - Combustible Solids
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闪点 (F)
Not applicable
闪点 (°C)
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