Merck 800592 Phthalic anhydride for synthesis 1 Kg
Merck 800592 Phthalic anhydride for synthesis. CAS 85-44-9, pH 2 (6 g/l, H₂O, 20 °C).
CAS #: 85-44-9
EC Numarası: 201-607-5
Molar Kütle: 148.12 g/mol
Tepe Formülü: C₈H₄O₃
Katalog No: 105554.0001
Marka: Merck
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Açıklama | |
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Katalog Numarası | 105554 |
Replaces | 5554-7; 5554 |
Genel Bakış | 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 pencil on the surface without risk to damage the layer. |
Ürün Bilgisi | |
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HS Kodu | 3822 19 00 |
Quality Level | MQ100 |
Özellikler | |
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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 | 175 - 225 µm |
Deviation of layer thickness per plate | ≤ 30 µm |
A) Colour test | |
Bleu VIF Organol | 11 - 25 |
Ceres black | 34 - 48 |
Ceres violet BRN | 52 - 67 |
Separation number | ≥ 10.5 |
B) Steroid test | |
Hydrocortisone | 25 - 37 |
Reichstein S | 37 - 49 |
Methyltestosterone | 42 - 54 |
Typical value determined on a conditioned sheet Eluent A) Toluene (45% rel.humidity) Eluent B) Ethyl acetate/Toluene (95/5 v/v; 20% rel.humidity) |