Categories: Lab Chemical-60
Product Short Description:

SILICA GEL 200 400 MESH FOR COLUMN CHROMOTOGRAPHY

Product Description:

Silica and alumina are both polar adsorbents so the more polar components in the mixture to be separated are retained more strongly on the stationary phase and are therefore eluted from the column last. Silica is recommended for most compounds, but as it is slightly acidic, it preferentially retains basic compounds.

Product Application:

The solvent soaks into the layer of silica, and after it gets up an inch or so it hits your line of stuff. ... Right down near the bottom, not far up from your original streak, will be the most polar stuff, especially any basic amines – silica gel is mildly acidic, so the amines will stick to it very tightly indeed

Product Dose:

It is a technique in which the stationary phase is solid adsorbents like silica gel and activated alumina powder and the mobile phase is a liquid. ... The principle of active compound separation depends on the activity of adsorbents and polarity of the solvent.

Product Note:

Silica gel and alumina are highly polar so they interact strongly with polar compounds and solvents, and weakly with nonpolar molecules. The stationary phase is loaded into the column as a slurry with the solvent and is then packed by flowing solvent through the stationary phase.

Free Delivery / Supply Locations : 
Oman, Bahrain, Abu Dhabi, Ajman, Al Ain, Dubai, Ras Al-Khaimah, Ras al Khaimah, Fujairah, Sharjah, Umm Al Quwain, Fujairah, Ruwais, Mina (Port) Zayed, Khalifa Port, Kizad, Port Rashid, Jebel Ali Port, DP WORLD, Jebel Ali Free Zone, Khor Fakkan Container Terminal, Port Rashid, Jebel Ali Port, Mina Kalid Port, Khor Fhakan Port ( Khawr Fakkan, Khawr al-Fakkan ), Sharjah Creek, Ajman, Port of Hamriyah, Mina Zayed Port, Mussafah port, Khalifa Port, Umm al-Nar Port, Um Al Quwain Port, Saqr Port, Port of Fujairah, Dibba Port, Jebel Dhanna, Mina Al Hamriya, Mina Rashid, All United Arab Emirates