60740
Silica gel Inorganic Sorbent
high-purity grade (puriss), 70-230 mesh
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关于此项目
化学文摘社编号:
UNSPSC Code:
12352309
PubChem Substance ID:
NACRES:
SB.52
EC Number:
231-545-4
MDL number:
产品名称
硅胶, high-purity grade (puriss), pore size 60 Å, 70-230 mesh, for column chromatography
grade
high-purity grade (puriss)
Quality Level
description
activity acc. to Brockmann and Schodder 2 - 3
form
powder
manufacturer/tradename
Sigma-Aldrich
technique(s)
LPLC: suitable
surface area
500 m2/g
matrix
Silica
matrix active group
silica
particle size
63-200 μm, 70-230 mesh
pore size
0.8 cm3/g pore volume, 60 Å
pH
6.0-7.5 (25 °C, 10% in H2O)
bp
2230 °C
mp
>1600 °C
anion traces
chloride (Cl-): ≤100 mg/kg, nitrate (NO3-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg
cation traces
Cu: ≤5 mg/kg, Fe: ≤20 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg
separation technique
hydrophilic interaction (HILIC)
SMILES string
O=[Si]=O
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
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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
Application
Silica gel may be used in separation of single-walled carbon nanotube (SWNT) by simple filtration.
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
新产品
此项目有
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
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)
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)
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 516481-100MG | 04055977198812 |
| 11359053001 | 04061838701299 |
| 11524488001 | 04061838703156 |
| P4265-250MG | 04061833264690 |
| P4265-25MG | 04061834374060 |
| P4265-5MG | 04061834374077 |
| 5084370001 | 04055977261967 |
| 10253286001 | 04061838669872 |
| P5318-25MG | 04061835512928 |
| P5318-5MG | 04061835512935 |
| P4265-1MG | 04061834373933 |
| P4265-100MG | 04061833264683 |
| 516481-5MG | 04055977198836 |
| 516481-25MG | 07790788055837 |
| 77170-50MG | 04061832945224 |
| 77170-5MG | 04054839595448 |
| 77170-10MG | 04061832945217 |
| 60740-500G | 04061832912530 |
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