Merck 105715 0001 Silica Gel 60 F254 25 Tlc Plates 20 X 20 Cm (1 Adet).

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Description
Catalogue Number	105715
Replaces	5715-7; 5715
Overview	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.

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Product Information
HS Code	3822 19 00
Quality Level	MQ100

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Applications
Application	Glass TLC plate, silica gel coated with flourescent indicator F254. The silica gel TLC plates come in a quantity of 25 size 20x20 cm for thin layer chromatography applications.

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Safety Information according to GHS
Storage class	10 - 13 Other liquids and solids

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Storage and Shipping Information
Storage	Store at +2°C to +30°C.

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Specifications
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)	9.5 - 11.5 µm
Layer thickness	210 - 270 µm
Deviation of layer thickness per plate	≤ 35 µm
Chromatographic testings:\nA) Colour test
hRf-values\n- bleu vif organol, colour test, lipophile	11 - 25
- Ceres Black G, colour test, lipophile	34 - 48
- ceres Violet brn, colour test, lipophile	52 - 67
separation number (colourtest, lipophile)	≥ 10.5
B) Steroid test
hRf-values\n- hydrocortisone, steroid test	25 - 37
- Reichstein S, steroid test	37 - 49
- methyltestosterone, steroid test	42 - 54
Typical value determined on a conditioned plate\nEluent A) Toluene (45% rel.humidity)\nEluent B) Ethyl acetate/Toluene (95+5 v/v; 20% rel.humidity)