1.09336

LiChroprep^® Si 60 (15-25 µm)

for liquid chromatography

• Synonym(s): Silica, Silicon dioxide
• Linear Formula: SiO₂
• CAS Number: 7631-86-9
• Molecular Weight: 60.08
• MDL number: MFCD00011232
• UNSPSC Code: 41115711
• EC Index Number: 231-545-4

Properties

• material: silica gel (irregularly-shaped)
• Quality Level: 100
• product line: LiChroPrep^®
• potency: >5000 mg/kg LD₅₀, skin (Rabbit)
• matrix active group: Irregular-Shaped Silica Gel
• particle size: 15-40 μm
• pore size: 6 nm mean pore size
• pH: 7 (20 °C, 100 g/L in H₂O, slurry)
• bp: 2230 °C (lit.)
• mp: >1600 °C (lit.)
• bulk density: 200‑800 kg/m³
• application(s): plasma purification
• separation technique: reversed phase
• storage temp.: no temp limit
• SMILES string: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• InChI key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Description

General description

Irregular-shaped Silica gel with narrow, well defined particle size distribution delivering high separating performance, permeability and good reproducibility

Application

LiChroprep Si 60 (15-25 µm) for liquid chromatography. CAS 7631-86-9, EC Number 231-545-4, chemical formula SiO₂.

Features and Benefits

LiChroprep^® Si 60 (15-25 µm) provides users with:

• Reproducible, homogeneous, irregularly shaped silica gel matrix
• Narrow, well defined particle size distribution for high performance and high permeability
• Large batch sizes up to 200 kg in the modification

Packaging

Plastic bottle

Analysis Note

pH-value (10 % suspension): 6.5 - 7.5
Loss on drying (150 °C): 5.5 - 6.5 %
Specific surface area (according to BET): 480 - 540 m²/g
Pore volume (N₂-isotherm): 0.74 - 0.84 ml/g
particle size (Malvern) (d10): 11.0 - 16.0 µm
particle size (Malvern) (d50): 18.0 - 24.0 µm
particle size (Malvern) (d90): 27.0 - 37.0 µm
Application test (2-Nitrotoluene): conforms
Pressure: ≤ 15.0 bar
Separation efficiency (2-Nitrotoluene): ≥ 8000
Leading: ≤ 7 %
Tailing: ≤ 11 %
Symmetry: 0.8 - 1.5
Capacity factor: ≥ 0.3
The specific surface is related to silica gel raw material.

Legal Information

LICHROPREP is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: nwg
• flash_point_f: Not applicable
• flash_point_c: Not applicable