GraphsphereTM Adsorbent - �뵺�羺�ٷ��ַ

产品说明

一般描�?/p>

A spherical graphitized polymer carbon (SGPC) has an innovative structure; a porous or non-porous core (the carbon framework that remains after pyrolysis of polymeric precursor), and a graphitized shell of a controlled thickness. The graphitization process results in a highly pure surface with great adsorption and desorption (if required) properties. Surface interactions depend solely on dispersion (London) forces. These amorphous/graphitic adsorbents are:

Spherical (better packed bed performance than granular particles)
Hard and non-friable (pack well, will not break)
Used for molecules with an analyte size relative to C5-C12 n-alkanes
Hydrophobic (can be used in high humidity environments)

Generally, SGPC adsorbents offer weaker relative adsorptive strength compared to carbon molecular sieve (CMS) adsorbents, and similar relative adsorptive strength compared to graphitized carbon black (GCB) adsorbents. Our Graphsphere ^?products are a type of SGPC adsorbent. They are great alternatives to GCB adsorbents (which are granular and friable).

For more information about any of our specialty carbon adsorbents, please visit sigma-aldrich.com/carbon

法律信息

Carboxen is a registered trademark of sigma-aldrich Co. LLC
Graphsphere is a trademark of sigma-aldrich Co. LLC

基本信息

EC 叶�/td>	215-609-9
NACRES	SB.54

产品性质

质量水平	100
描述	Formally Carboxen^?1016
形式	powder
包装	bottle of 10 g
technique(s)	LPLC: suitable
基质	Formally Carboxen^?1016 Graphsphere^?2016
基质活性基囡�/td>	carbon
粒径	60-80 mesh
孔径	~0.34 cm³/g mesoporosity ~0 cm³/g macroporosity ~0 cm³/g microporosity ~0 ? pore diameter
表面�?/td>	~75 m²/g
密度	~0.41 g/mL (free fall density)
application(s)	sample preparation
分离技�?/td>	reversed phase

安全信息

象形国�/td>
警示用语９�/td>	Warning
危险声明	H351
预防措施声明	P281
储存分类代码	11 - Combustible Solids
WGK	nwg
闪点(F)	Not applicable
闪点(C)	Not applicable