모든 사진(1)
About This Item
CAS Number:
EC Number:
MDL number:
UNSPSC 코드:
23201100
PubChem Substance ID:
NACRES:
SB.52
추천 제품
product name
Silica gel, high-purity grade (w/ Ca, ~0.1%), pore size 60 Å, 230-400 mesh particle size
Grade
high-purity grade (w/ Ca, ~0.1%)
Quality Level
설명
activity acc. to Brockmann and Schodder 2 - 3
for flash chromatography
for preparative liquid chromatography
형태
powder
제조업체/상표
Sigma-Aldrich
기술
LPLC: suitable
표면적
500 m2/g
기질
Silica
기질 활성군
silica
입자 크기
230-400 mesh
40-63 μm
공극 크기
0.8 cm3/g pore volume
60 Å
bp
2230 °C
mp
>1600 °C
분리 기술
hydrophilic interaction (HILIC)
SMILES string
O=[Si]=O
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
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일반 설명
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
애플리케이션
Silica gel may be used in separation of single-walled carbon nanotube (SWNT) by simple filtration.
Storage Class Code
13 - Non Combustible Solids
WGK
nwg
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
개인 보호 장비
Eyeshields, Gloves, type N95 (US)
이미 열람한 고객
Ágnes M Móricz et al.
Journal of chromatography. A, 1524, 266-272 (2017-10-11)
The antibacterial profiling of Onopordum acanthium L. leaf extract and subsequent targeted identification of active compounds is demonstrated. Thin-layer chromatography (TLC) and off-line overpressured layer chromatography (OPLC) coupled with direct bioautography were utilized for investigation of the extract against eight
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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