半岛bd体育手机客户端 说明

一般描述

Silica gel is a rigid 3D network of colloidal silica. It is exclusively used as a support material for the active titanium (III) centers in Ziegler-Natta catalysts. Silica gel allows a controlled fragmentation leading to form uniform polymer particles with narrow particle size distribution and high bulk density. Silica gel is classified as below:
a. Aquagel - pores are filled with water
b. Xerogel - by the process of evaporation, aqueous phase in the pores are removed
c. Aerogel - solvent removed by supercritical extraction

应用

Silica gel may be used in separation of single-walled carbon nanotube (SWNT) by simple filtration.

基本信息

EC 号	231-545-4
MDL编号	MFCD00011232
PubChem化学物质编号	329759194
NACRES	SB.52

半岛bd体育手机客户端 性质

质量水平	100
等级	for column chromatography high purity
形式	powder or crystals
technique(s)	LPLC: suitable
基质	Silica
基质活性基团	silica
粒径	0.2-0.5 mm (35-70 mesh ASTM) 35-70 mesh
孔径	90 ? mean pore size
表面积	350 m2/g
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)