α-Naphtholphthalein, pure indicator

: Thermo Fisher Scientific

α-Naphtholphthalein, pure indicator

: Thermo Fisher Scientific

:596-01-0

:C₂₈H₁₈O₄

:MFCD00036202

:418.45 g/mol

:240…250 °C

:Ambient

:209-875-5

Appearance:
Beige to pink to brown Powder
Infrared spectrum:
Conforms
Loss on drying:
≤5 % (110°C, 1 h)
UV Lambda max:
648 to 654 nm (in 0.1N NaOH)
Specific absorbance A (1%/1cm):
≥550 (at lamda max)
Visual transition interval:
from pH 7.3 (pink-yellow) to pH 8.7 (green-blue)

ACRO19012

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