12479
Silica gel Inorganic Sorbent
technical grade (w/ Ca, ~0.1%), 230-400 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, technical grade (w/ Ca, ~0.1%), 60Å, 230-400 mesh particle size, Ca 0.1-0.3 %
grade
technical grade (w/ Ca, ~0.1%)
Quality Segment
description
activity acc. to Brockmann and Schodder 2 - 3
form
powder
composition
Ca, 0.1-0.3%
manufacturer/tradename
Sigma-Aldrich
technique(s)
LPLC: suitable
surface area
500 m2/g , approx.
matrix
Silica
matrix active group
silica
particle size
230-400 mesh, 40-63 μm
pore size
60 Å mean pore size
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
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.
Application
Analysis Note
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。
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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)