346446

Silica gel Inorganic Sorbent

high-purity grade (7749), 360-2500 mesh

• CAS Number: 112926-00-8
• EC Number: 231-545-4
• MDL number: MFCD00011232
• UNSPSC Code: 12352309
• PubChem Substance ID: 24861409
• NACRES: NB.21

Properties

• product name: Silica gel, high-purity grade (7749), with gypsum binder and fluorescent indicator, suitable for thin layer chromatography (TLC)
• grade: high-purity grade (7749)
• Quality Level: 100
• form: powder
• manufacturer/tradename: EMD Millipore^®
• technique(s): LPLC: suitable; thin layer chromatography (TLC): suitable
• matrix: Silica
• matrix active group: silica
• particle size: 5-40 μm
• pore size: - cm³/g pore volume; 60 Å pore size
• bp: 2230 °C
• mp: >1600 °C
• separation technique: hydrophilic interaction (HILIC)
• SMILES string: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• InChI key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Description

General description

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 fragmentationresultibng 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

Application

Silica gel was used to compare MCM-41 type mesoporous adsorbents.

Legal Information

EMD Millipore is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: nwg
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves