Indigotrisulphonic acid potassium salt ≥60% (by HPLC) ozone-scavenging reagent, Sigma-Aldrich®
Fornitore: SIGMA-ALDRICH MICROSCOPY
Synonyms:
Potassium indigotrisulphonate
Ozone-scavenging reagent that reacts rapidly with ozone. Potassium indigotrisulfonate has been used: In colorimetric method of measurement of atmospheric ozone, for measuring residual aqueous ozone by gas diffusion flow injection analysis, to determine O₃ concentration in water.
Formula:
C₁₆H₇K₃N₂O₁₁S₃ Peso molecolare: 616,71 g/mol Temperatura di stoccaggio: Ambiente |
MDL Number:
MFCD00013160 CAS Number: 67627-18-3 |
Risultati del test di specificazione
Appearance (Color) | Dark Blue to Very Dark Blue and Dark Purple to Very Dark Purple and Black |
Appearance (Form) | Powder or Crystals or Powder with Chunk(s) or Crystals with Chunk(s) |
Infrared spectrum | Conforms to Structure |
Wavelength | 250 - 256 nm |
Extinction Coefficient | ≥ 23000 |
Extinction Coefficient ( c = 0.01g/l in H2O) | ≥ 17000 |
Purity (HPLC) | ≥ 60 % |
Carbon Typically | 19.5% - 26.0% |
Nitrogen Typically | 2.5% - 4.0% |
Solubility (Color) c = 0.1%; Water | Dark Blue to Very Dark Blue |
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