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1.09390

Millipore

LiChroprep® Si 60 (25-40 µm)

for liquid chromatography

Synonym(s):

Silica, Silicon dioxide

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About This Item

Linear Formula:
SiO2
CAS Number:
7631-86-9
Molecular Weight:
60.08
MDL number:
MFCD00011232
UNSPSC Code:
41115711
EC Index Number:
231-545-4

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

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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

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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