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4-(4-Nitrophénylazo)résorcinol 90% (teneur en colorant), Sigma-Aldrich®

Marques : SIGMA ALDRICH MICROSCOPY
Ratings: Ecrire un avis

Total Evaluation: 0
Moyenne des Notes : 0.0 sur 5

Synonyme(s): 4-((4-Nitrophenyl)diazenyl)benzene-1,3-diol, Azoviolet, Azo Violet, Magneson I

M-Clarity™ (Niveau de Qualité) = MQ200

114669-100G 114669-25G
114669-100GEA 267 EUR
114669-100G 114669-25G
4-(4-Nitrophénylazo)résorcinol 90% (teneur en colorant), Sigma-Aldrich®
4-(4-Nitrophénylazo)résorcinol

4-(4-Nitrophenylazo) resorcinol, also known as azo violet or magneson I, is a red colored powder. It functions as a spot test reagent and forms blue lake on reaction with Mg(OH)₂ in alkaline solution. It is mainly used for determining the presence of magnesium in the solution. 4-(4-Nitrophenylazo)resorcinol is a pH indicator.

Formule: C₁₂H₉N₃O₄
Poids moléculaire: 259.22 g/mol
Point de fusion: 195...200 °C (déc., lit.)
Numéro MDL: MFCD00007310
Numéro CAS: 74-39-5
EINECS: 200-808-5
https://digitalassets.avantorsciences.com/adaptivemedia/rendition?id=9edde24acfea4bf1115e7f5983a4a9221e9ab577&vid=77fc9944dfd29256f6815d1572c5e191577cde33&prid=web&clid=SAPDAM

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Résultats des tests de spécification

Appearance (colour) Orange to very dark orange and red to very dark red and dark red-orange and very dark red-brown
Appearance (form) Powder
Infrared spectrum Conforms to structure
Wavelength 439 - 445 nm
Extinction coefficient, c = 0.005 g/L in methanol + 1 ml 0.1 N NaOH ≥37000
Carbon 49.5 - 61.7%
Nitrogen 14.4 - 18.0%


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