Appearance (Colour)
Brownish
Appearance (Form)
Powder
Solubility (Turbidity) 0.5% aq. solution
Slight opalescent
Assay
min. 85%
Nitrogen content (on dry basis)
min. 15%
Water (KF)
~10%
Phosphorus content
~8%
Electrophoresis test
Passes test
Absorbance (A) of 1% solution (pH 7.0) in a 1 cm cell v/s buffer
@260nm
180 - 200
