Indigotrisulphonic acid potassium salt ≥60% (by HPLC) ozone-scavenging reagent, Sigma-Aldrich®
Supplier: SIGMA-ALDRICH MICROSCOPY
234087-1GEA
110
EUR
234087-1G
234087-5G
Indigotrisulphonic acid potassium salt ≥60% (by HPLC) ozone-scavenging reagent, Sigma-Aldrich®
Indigotrisulphonic acid potassium salt
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 MW: 616,71 g/mol Storage Temperature: Ambient |
MDL Number:
MFCD00013160 CAS Number: 67627-18-3 |
Specification Test Results
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 | 597 - 603 nm |
Extinction Coefficient | ≥ 15000 |
Wavelength | 306 - 312 nm |
Extinction Coefficient | ≥ 23000 |
Wavelength | 250 - 256 nm |
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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