ALKALI BLUE (C.I. 42765) INDICATOR

Code: 1091960025 D2-231

Analysis Note

Identity (UV/VIS-Spectrum): passes testTransition range: pH 11.5 - pH 13.0 blue-violet - dark-pinkAbsorption maximum λmax. (Ethanol): 597 - 602 ...


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Analysis Note

Identity (UV/VIS-Spectrum): passes testTransition range: pH 11.5 - pH 13.0 blue-violet - dark-pinkAbsorption maximum λmax. (Ethanol): 597 - 602 nmSpec. Absorptivity A 1%/1cm (λmax; 0.003 g/l; ethanol abs.; calculated on dried substance): ≥ 1000TLC-Test: passes testLoss on drying (110 °C): ≤ 5 %Suitability as indicator (according to DIN 51558): passes test

General description

indicator

λmax597-602 nm in ethanol
agencypasses application test for DIN 51558
formsolid
InChI keyDVPLSZDCYOJSOG-UHFFFAOYSA-N
InChI1S/C37H29N3O3S/c41-44(42,43)36-14-8-7-13-35(36)40-34-25-19-29(20-26-34)37(27-15-21-32(22-16-27)38-30-9-3-1-4-10-30)28-17-23-33(24-18-28)39-31-11-5-2-6-12-31/h1-26,38-39H,(H,41,42,43)
loss≤5% loss on drying, 110°C
Quality Level200
storage temp.2-30°C
visual transition interval11.5-13, blue-violet to pink
Cas Number1324-76-1
This product has met the following criteria to qualify for the following awards:



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