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. It allows a controlled fragmentation resulting in the formation of 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 was used on glass plates to perform preparative thin layer chromatography.

包装

250 g in poly bottle

基本信息

EC 号	231-545-4
MDL编号	MFCD00011232
PubChem化学物质编号	24857347

半岛bd体育手机客户端 性质

物料	plastic support silica gel 60 matrix
质量水平	100
等级	high-purity grade
形式	powder
特点	binder Organic Polymer fluorescent indicator: no
包装	pkg of 250 g
manufacturer/tradename	sigma-aldrich
technique(s)	thin layer chromatography (TLC): suitable
杂质	≤0.001% Fe3+
粒径	5-25 μm
孔径	0.75 cm3/g pore volume 60 ? medium pore diameter 60 ? pore size
表面积	~500 m2/g
pH值(酸碱度)	~6.8 (10% in aq. suspension)
bp	2230 ℃
mp	>1600 ℃
痕量阴离子	chloride (Cl-): ≤0.003%
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