czerwień chlorofenolowa, czysty indicator grade
Dostawca: Thermo Fisher Scientific
|
Uwaga
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190040100
190040500
ACRO190040100EA
381
PLN
ACRO190040100
ACRO190040500
czerwień chlorofenolowa, czysty indicator grade
czerwień chlorofenolowa
Formuła:
C₁₉H₁₂Cl₂O₅S Temp. topnienia: 261 °C Temperatura przechowywania: Temperatura otoczenia |
Numer MDL:
MFCD00005877 Numer CAS: 4430-20-0 Numer WE (dawny EINECS): 224-619-2 |
Wyniki testów specyfikacyjnych
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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