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Physical Properties of Lumichrome
 Structure of Lumichrome

Lumichrome in water fluorescing blue under UV light (254nm).
  • Molecular Weight: 242.23 grams/mole
  • CAS Number: 1086-80-2
  • Melting Point: >300oC 1
  • Elemental Analysis: Carbon: 59.50%, Hydrogen: 4.16%, Nitrogen: 23.13%, Oxygen: 13.21%. 1
  • Molecular Formula: C 12 H 10 N 4 O 2
  • Appearance: Pale yellow solid. The aqueous, alcoholic and chloroformic solutions fluoresce blue. 1
  • Solubility: Soluble in pyridine or pyridine + alcohol. Sparingly soluble in methanol and 90% hot ethanol, water and chloroform. 1
  • Molar Refractivity: 64.44 +/- 0.3 cm 3. 2
  • Molar Volume: 174.4 +/- 3.0 cm3. 2
  • Parachor: 491.8 +/- 6.0 cm3. 2
  • Index of Refraction: 1.660 +/- 0.022
  • Surface Tension: 63.2 +/- 3.0 dyne/cm 2
  • Density: 1.388 +/- 0.06 g/cm3. 2
  • Polarizability: 25.54 +/- 0.5 10-24cm3. 2






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