Appearance (Form)
Brown to creamish
Appearance (Colour)
Powder
Solubility (Turbidity) 0.1% solution in Ethanol
Clear
Loss on drying
max. 5%
Suitability as pH indicator
pH 9.0 (Yellow) - pH 13.0 (Violet)
Melting Point
250 - 253°C
Absorbance (A) of 1% in 0.1N NaOH in a 1 cm cell v/s 0.1N NaOH
@402nm
min. 260
@596nm
min. 730
