Transition Range.....................................................................................pH 0.5 to pH 2.5(Pink- Yellow)
pH 6.5 to pH 8.8 (Yellow- Purple)
Solubility 0.1% (95%EtOH)..................................................................Clear Yellow solution
Absorptivity 1%/1cm,
(pH 8.8 at)λ Max.573.0 nm.................................................................>1000
(pH 6.5 at)λ Max.435.0 nm ................................................................>490
Loss on Drying at110°C (1hr)..............................................................<3%
