60741
Silica gel Inorganic Sorbent
high-purity grade, 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, average pore size 60 Å (52-73 Å), 70-230 mesh, 63-200 μm, for column chromatography
grade
high-purity grade
Quality Segment
description
activity acc. to Brockmann and Schodder 2 - 3
form
powder or crystals
manufacturer/tradename
Sigma-Aldrich
technique(s)
LPLC: suitable
surface area
470-530 m2/g
matrix
Silica
matrix active group
silica
particle size
63-200 μm, 70-230 mesh
pore size
0.7-0.85 cm3/g pore volume, 60 Å average pore size (52-73 Å)
bp
2230 °C
mp
>1600 °C
separation technique
hydrophilic interaction (HILIC)
SMILES string
O=[Si]=O
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
General description
硅胶是胶态二氧化硅的刚性三维网络。它专门用作 Ziegler-Natta 催化剂中活性钛 (III) 中心的支持材料。硅胶允许受控的碎片形成具有窄粒度分布和高堆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
Application
硅胶可用于单壁碳纳米管的简单过滤分离。
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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)