346446
Silica gel Inorganic Sorbent
high-purity grade (7749), 360-2500 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 (7749), with gypsum binder and fluorescent indicator, suitable for thin layer chromatography (TLC)
grade
high-purity grade (7749)
Quality Segment
form
powder
manufacturer/tradename
EMD Millipore®
technique(s)
LPLC: suitable, thin layer chromatography (TLC): suitable
matrix
Silica
matrix active group
silica
particle size
5-40 μm
pore size
- cm3/g pore volume, 60 Å pore size
bp
2230 °C
mp
>1600 °C
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 fragmentationresultibng 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
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 was used to compare MCM-41 type mesoporous adsorbents.
Legal Information
EMD Millipore is a registered trademark of Merck KGaA, Darmstadt, Germany
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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)