Merck, 1.01468, Anthrone

Analysis Note
Purity (GC): ≥ 98.0 %
Identity (IR-spectrum): conforms
Appearance: Almost white pale yellow to greenish yellow crystal needles or crystalline powder.
Solubility in ethyl acetate (20 g/l): conforms
Appearance of solution (Into Toluol (50 g/l)): conforms
Appearance of solution(Into Sulfuric acid (96 %, 20 g/l)): conforms
Melting point: 153 - 157 °C
Absorbance of reagent solution(425 nm; 0,5 g/l; sulfuric acid 65 %): ≤ 0.75
Absorbance of reagent solution(620 nm; 0,5 g/l; sulfuric acid 65 %): ≤ 0.045
Fe (Iron): ≤ 0.001 %
Sensitivity to carbohydrates(A (620 nm, Glucose 750 µg/25 ml)): ≥ 0.90
Sensitivity to carbohydrates (linearity): conforms
Water (according to Karl Fischer): ≤ 0.5 %