Alizarin complexone dihydrate, pure indicator grade
Leverancier: Thermo Fisher Scientific
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155830010
155830050
ACRO155830010EA
58.9
EUR
ACRO155830010
ACRO155830050
Alizarin complexone dihydrate, pure indicator grade
Alizarin complexone dihydrate
CAS No.: 455303-00-1
Formule:
C₁₉H₁₅NO₈·2H₂O Smeltpunt: 180…185 °C Bewaar temperatuur: Kamertemperatuur |
MDL Nummer:
MFCD00149067 CAS nummer: 455303-00-1 |
Specification Test Results
Appearance | Yellow to orange to brown Powder |
Infrared spectrum | Conforms |
Water | ≤9.5 % (K.F.) |
Appearance of solution | (0.2% soln. in 0.02 M NaOH) clear, deep red-purple |
UV Lambda max | 425 to 430 nm (C=10 mg/l, Methanol) |
Titration with NaOH | 97 to 103 % (On dry substance) |
Absorbance | ≥0.42 (lambda max, after 1 hr.)(2 ml of a 0.2% soln. in 0.02 M NaOH + 5 ml acet |
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