推荐产品
product name
硅胶, technical grade (w/ Ca, ~0.1%), 60Å, 230-400 mesh particle size, Ca 0.1-0.3 %
等级
technical grade (w/ Ca, ~0.1%)
质量水平
描述
activity acc. to Brockmann and Schodder 2 - 3
for preparative liquid chromatography
形式
powder
组成
Ca, 0.1-0.3%
制造商/商品名称
Sigma-Aldrich
技术
LPLC: suitable
表面积
500 m2/g , approx.
基质
Silica
基质活性基团
silica
粒径
230-400 mesh
40-63 μm
孔径
60 Å mean pore size
bp
2230 °C
mp
>1600 °C
分离技术
hydrophilic interaction (HILIC)
SMILES字符串
O=[Si]=O
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
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相关类别
一般描述
Silica gel, highly porous textured matrix are generally used for synthesis of adsorbents. They are corpuscular in structure. Silica surface possess a layer of hydroxyl groups and adsorbed water molecules, which can be removed by drying at high temperature or even by treatment with suitable reagents. Silica gel surface plays important role in catalysis, chemical separation and microelectronic fabrications.
应用
- Silica gel was used on glass plates for preparative TLC and on aluminium sheets for analytical TLC.
- Silica gel was used in vacuum chromatography and TLC.
- Silica gel was used in column chromatography.
分析说明
可能含有难溶物质和微量加工残留物。使用前需用溶剂冲洗。
WGK
nwg
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
法规信息
新产品
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Smith, M. A. L., et al
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S Jayaraman et al.
Chemosphere, 44(2), 181-191 (2001-07-11)
In this study, we compared microwave solvent extraction (MSE) to conventional methods for extracting organic contaminants from marine sediments and tissues with high and varying moisture content. The organic contaminants measured were polychlorinated biphenyl (PCB) congeners, chlorinated pesticides, and polycyclic
The surface structure of silica gel
Peri, J. B., and A. L. Hensley Jr.
The Journal of Physical Chemistry, 72, 2926-2933 (1968)
Proton NMR study of dehydration of the silica gel surface
Bronnimann
Journal of the American Chemical Society, 110, 2023-2026 (1988)
MODIFIED AND UNMODIFIED SILICA GEL USED FOR HEAVY METAL IONS REMOVAL FROM AQUEOUS SOLUTIONS
Tzvetkova, P., and R. Nickolov.
Journal of the University of Chemical Technology and Metallurgy, 47, 498-504 (2012)
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