半岛bd体育手机客户端 说明

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。

基本信息

EC 号	231-545-4
MDL编号	MFCD00011232
PubChem化学物质编号	329749743
NACRES	SB.52

半岛bd体育手机客户端 性质

质量水平	100
等级	technical grade (w/ Ca, ~0.1%)
描述	for preparative liquid chromatography
形式	powder
组成	Ca, 0.1-0.3%
manufacturer/tradename	sigma-aldrich
按Brockmann和Schodder划分的活度	2-3
technique(s)	LPLC: suitable
基质	Silica
基质活性基团	silica
粒径	230-400 mesh 40-63 μm
孔径	60 ? mean pore size
表面积	500 m2/g (approx.)
bp	2230 ℃
mp	>1600 ℃
分离技术	hydrophilic interaction (HILIC)
SMILES string	O=[Si]=O
InChI	1S/O2Si/c1-3-2
InChI key	VYPSYNLAJGMNEJ-UHFFFAOYSA-N

安全信息

储存分类代码	11 - Combustible Solids
WGK	nwg
闪点(F)	Not applicable
闪点(C)	Not applicable
个人防护装备	Eyeshields, Gloves, type N95 (US)