236845
Silica gel Inorganic Sorbent
high-purity grade (Davisil Grade 646), 35-60 mesh
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关于此项目
化学文摘社编号:
UNSPSC Code:
23201100
PubChem Substance ID:
NACRES:
SB.52
EC Number:
231-545-4
MDL number:
产品名称
硅胶, high-purity grade (Davisil Grade 646), 35-60 mesh, pore size 150 Å
grade
high-purity grade (Davisil Grade 646)
Quality Segment
assay
≥99%
form
powder
manufacturer/tradename
Davisil®
technique(s)
LPLC: suitable
surface area
300 m2/g
matrix
Silica
matrix active group
silica
particle size
250-500 μm, 35-60 mesh
pore size
1.15 cm3/g pore volume, 150 Å
pH
7.0 (5% in slurry)
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 - 孔内充满了水
b.干凝胶 - 通过蒸发过程，气孔中的水相被去除
c.气凝胶-溶剂去除超临界萃取。
a.水凝胶 - 孔内充满了水
b.干凝胶 - 通过蒸发过程，气孔中的水相被去除
c.气凝胶-溶剂去除超临界萃取。
Legal Information
Davisil is a registered trademark of W.R. Grace & Co.-Conn.
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存储类别
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable