Merck, 1164870001, TLC aluminum sheets, Silica gel 60 W

General description
25 Aluminium sheets 20 x 20 cm
Our classical silica TLC plates are based on a combination of our proven silica gel 60 and the addition of a unique polymeric binder resulting in a very adherent and hard surface that will not crack or blister and even allow writing with a pensil on the surface without risk to damage the layer.
Analysis Note
Specific surface area (according to BET; 5-Pt. measurement): 480 - 540 m²/g
Pore volume (N₂-isotherm): 0.74 - 0.84 ml/g
d 50 (laser diffraction, size distribution): 9.7 - 11.7 µm
Layer thickness: 140 - 160 µm
Deviation of layer thickness per plate: ≤ 20 µm
Chromatographic testing:
colour test
hRf-values
- Benzene-azo-a-naphthylamine:
40 - 55
- Brillant red B: 60 - 75
- Erio green B: 75 - 90
separation number (colourtest, lipophile): ≥ 9.0
Typical value determined on a sheet
Eluent: Ethylmethylketone/ 1-propanol/ glacial acetic acid/ water (40/40/5/20 v/v/v/v)
Other Notes
Replaces: 16487-1; 16487