MF: C12H8N2.H2O
Appearance : White powder
Assay: 99.0%min. Absorption modulus for iron
Absorption modulus for iron complexes : Min. 1.15X 104 L/cm.mol
Solving test in ethanol: pass
Residue on ignition ( as SO42-) : 0.1% max
Moisture: 8.5-10%