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

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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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