60740

Silica gel Inorganic Sorbent

high-purity grade (puriss), 70-230 mesh

• CAS Number: 112926-00-8
• EC Number: 231-545-4
• MDL number: MFCD00011232
• UNSPSC 코드: 12352309
• PubChem Substance ID: 329759185
• NACRES: SB.52

속성

• product name: Silica gel, high-purity grade (puriss), pore size 60 Å, 70-230 mesh, for column chromatography
• Grade: high-purity grade (puriss)
• Quality Level: 100
• 설명: activity acc. to Brockmann and Schodder 2 - 3
• 형태: powder
• 제조업체/상표: Sigma-Aldrich
• 기술: LPLC: suitable
• 표면적: 500 m²/g
• 기질: Silica
• 기질 활성군: silica
• 입자 크기: 63-200 μm; 70-230 mesh
• 공극 크기: 0.8 cm³/g pore volume; 60 Å
• pH: 6.0-7.5 (25 °C, 10% in H₂O)
• bp: 2230 °C
• mp: >1600 °C
• 음이온 미량물: chloride (Cl^-): ≤100 mg/kg; nitrate (NO₃^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• 양이온 미량물: Cu: ≤5 mg/kg; Fe: ≤20 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• 분리 기술: hydrophilic interaction (HILIC)
• SMILES string: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• InChI key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

설명

일반 설명

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

애플리케이션

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

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: nwg
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: Eyeshields, Gloves, type N95 (US)