物料
glass support
silica gel matrix
质量
with concentration zone
with fluorescent indicator 254 nm
特点
binder Gypsum/polymeric
fluorescent indicator
制造商/商品名称
Sigma-Aldrich
技术
thin layer chromatography (TLC): suitable
长度 × 宽度
20 cm × 20 cm , w/ concentration zone
层厚度
250 μm
板长度 × 宽度
20 cm × 20 cm
粒径
8.0-12.0 μm
孔径
60 Å medium pore diameter
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一般描述
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 resulting 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 is 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 is removed by supercritical extraction
应用
Silica gel on TLC Plates was used in thin layer chromatography.
其他说明
this product will be discontinued, please find the alternative product here :
100390
100390
储存分类代码
13 - Non Combustible Solids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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Journal of agricultural and food chemistry, 68(6), 1546-1554 (2020-01-28)
Bromoxynil is an increasingly applied nitrile herbicide. Under aerobic conditions, hydration, nitrilation, or hydroxylation of the nitrile group commonly occurs, whereas under anaerobic conditions reductive dehalogenation is common. This work studied the isotope effects associated with these processes by soil
Mingfu Wang et al.
Journal of agricultural and food chemistry, 51(3), 601-608 (2003-01-23)
Artichoke leaf is an herbal medicine known for a long time. A systematic antioxidant activity-directed fractionation procedure was used to purify antioxidative components from the aqueous methanol extractions of artichoke heads and leaves in this study. Seven active polyphenolic compounds
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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