Merck, 1057150001, TLC plates, Silica gel 60 F₂₅₄

General description
25 Glass plates 20 x 20 cm
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 (laserdiffraction, size distribution): 9.7 - 11.7 µm
Layerthickness: 210 - 270 µm
Deviationof layer thickness per plate: ≤ 35 µm
Chromatographic testing:
A) colourtest
hRf-values
- bleu viforganol, colour test, lipophile: 11 - 25
- CeresBlack G, colour test, lipophile: 34 - 48
- ceresViolet brn, colour test, lipophile: 52 - 67
separationnumber (colour test, lipophile): ≥ 10.5
B)Steroid test
hRf-values
- Hydrocortisone, steroid test: 25 - 37
- Reichstein S, steroid test: 37 - 49
- Methyltestosterone, steroid test: 42 - 54
Typical value determined on a conditioned plate
Eluent A) Toluene (45% rel. humidity)
Eluent B) Ethyl acetate/Toluene (95+5 v/v; 20% rel. humidity)
Other Notes
Replaces: 5715-7; 5715