1.09390

LiChroprep^® Si 60 (25-40 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
• potency: >5000 mg/kg LD₅₀, skin (Rabbit)
• matrix active group: Irregular-Shaped Silica Gel
• particle size: 20-40 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

irregularly shaped silica gel matrix ideal for simple adsorption processes and normal-phase chromatography

Application

LiChroprep Si 60 (25-40 µm) for liquid chromatography. CAS 7631-86-9, EC Number 231-545-4, chemical formula SiO₂.

Features and Benefits

LiChroprep^® Si 60 (25-40 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
Specific surface area (according to BET): 480 - 540 m²/g
Pore volume (N₂-isotherm): 0.74 - 0.84 ml/g
Particle Size (d10): 14 - 17 µm
Particle Size (d50): 22 - 28 µm
Particle Size (d90): 33 - 43 µm
Pressure: ≤ 5.0 bar
Application test (2-Nitrotoluene): conforms
Separation efficiency (2-Nitrotoluene): ≥ 5000
Leading: ≤ 5.0 %
Tailing: ≤ 10 %
Symmetry: 0.8 - 1.6
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 Code: 13 - Non Combustible Solids
• WGK: nwg
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable