MERCK – 101408 Crystal Violet (C.I. 42555)

Specifications :

  • Dye content (spectrophotometrically; calc. on dried substance) : ≥ 90.0 %
  • Identity (UV/VIS-Spectrum) : passes test
  • Absorbance characteristics (Ratio, E (λmax - 15 nm)/E (λmax +  15 nm)) : 0.98 – 1.20
  • Absorption maximum λmax. (water) : 589 – 594 nm
  • Spec. Absorptivity A 1%/1cm (λmax; 0.002 g/l; water) : 2000 – 2450
  • TLC-Test : passes test
  • Michler`s ketone : < 0.10 %
  • Loss on drying (110 °C, 4 h) : ≤ 7.5 %
  • Suitability as indicator (ACS) : passes test
  • Suitability as indicator (Reag. Ph. Eur.) : passes test
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MERCK – 101408 Crystal Violet (C.I. 42555)

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