Rouge de chlorophénol, pur grade Indicateur
Fournisseur: Thermo Scientific
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Attention
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Synonyms:
S,S-Dioxyde du 4,4'-(3H-2,1-benzoxathiol-3-ylidène)bis[2-chlorophénol]
ACRO190040500EA
244
CHF
ACRO190040500
ACRO190040100
Rouge de chlorophénol, pur grade Indicateur
Rouge de chlorophénol
Formule:
C₁₉H₁₂Cl₂O₅S MW: 423,27 g/mol Melting Pt: 261 °C température de stockage: Ambient |
MDL Number:
MFCD00005877 Numéro CAS: 4430-20-0 |
Résultats des tests de spécification
Appearance | Green to red-brown to brown Powder |
Infrared spectrum | Conforms |
Loss on drying | ≤8 % (110°C) |
Solubility | (0.1 % in ethanol) Clear brown-yellow to dark orange |
UV Lambda max | 572 to 576 nm (in 0.1 N NaOH) |
Specific absorbance A (1%/1cm) | ≥1000 (at Lambda max) On dried substance |
Visual transition interval | from pH 4.8 (yellow) to pH 6.4 (purple) |
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