Arsenazo III for calcium determination, Sigma-Aldrich®
Fornitore: SIGMA-ALDRICH MICROSCOPY
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Pericolo
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Synonyms:
2,2′-(1,8-Dihydroxy-3,6-disulphonaphthylene-2,7-bisazo)bisbenzenearsonic acid, 2,7-Bis(2-arsonophenylazo)chromotropic acid
M-Clarity™ quality level = MQ200
Arsenazo III has been used as a color forming reagent to determine uranium concentration.
Arsenazo III is a metallochromic dye. Arsenazo III is used in the determination of calcium in biological samples. It is used to evaluate calcium transport in permeabiliSed cells. It is also used for the detection of rare earth metals (polyvalent metal ions).
Arsenazo III is used for the spectrophotometric determination of uranium and thorium.
Formula:
C₂₂H₁₈As₂N₄O₁₄S₂ Peso molecolare: 776,38 g/mol Punto di fusione: >320 °C (lett.) Temperatura di stoccaggio: Room Temperature |
MDL Number:
MFCD00036695 CAS Number: 1668-00-4 EINECS: 216-788-6 UN: 3465 ADR: 6.1,III |
Risultati del test di specificazione
Appearance (Colour) | Brown to Very Dark Brown and Black |
Appearance (Form) | Powder |
Infrared spectrum | Conforms to Structure |
Carbon | 25.5 - 38.1 % |
Nitrogen | 5.5 - 8.3 % |
Calcium (Ca) | ≤1000 ppm |
Solubility (Colour) c = 1 mg/ml, 1 N NH₄OH |
Dark Blue to Very Dark Blue and Dark Purple to Very Dark Purple and Blue-Purple |
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