60760
硅胶
high-purity grade, Type G, with ~13% calcium sulfate, suitable for thin layer chromatography (TLC)
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关于此项目
化学文摘社编号:
NACRES:
NC.07
PubChem Substance ID:
UNSPSC Code:
41115711
EC Number:
231-545-4
MDL number:
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
InChI
1S/O2Si/c1-3-2
SMILES string
O=[Si]=O
grade
high-purity grade
form
powder
quality
with ~13% calcium sulfate
manufacturer/tradename
Sigma-Aldrich
technique(s)
thin layer chromatography (TLC): suitable
surface area
500 m2/g
particle size
<20 μm, >632 mesh
pore size
0.7-0.85 cm3/g pore volume, 60 Å pore size
bp
2230 °C
mp
>1600 °C
Quality Level
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General description
硅胶是硅胶的刚性三维网络。它专门用作齐格勒-纳塔催化剂中活性钛（III）中心的载体材料。硅胶允许可控破碎，导致形成具有窄粒度分布和高堆积密度的均匀聚合物颗粒。硅胶分类如下：
a.水凝胶 - 气孔充满了水
b.干凝胶 - 通过蒸发过程，气孔中的水相被去除
c.气凝胶 - 通过超临界萃取除去的溶剂
a.水凝胶 - 气孔充满了水
b.干凝胶 - 通过蒸发过程，气孔中的水相被去除
c.气凝胶 - 通过超临界萃取除去的溶剂
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
T Martin et al.
Chemical communications (Cambridge, England), (1)(1), 24-25 (2002-07-18)
Texture-related features of water intrusion in hydrophobised MCM-41 silicas render these materials especially suitable for energy dissipation in mechanical dampers.
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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