o-Phenanthroline monohydrate

Molecular Formula : C12H8N2 .H2O
Molecular Weight : 198.22

Appearance : White to off-white crystals or powder or needle-like crystals (May become cream coloured during storage)
Solubility : 33.3 mg soluble in 1 mL of alcohol
Melting range : 97 - 104°C
Suitability as redox indicator : Passes test
Suitability for determining iron : Passes test
Water (K.F.) : 8.00 - 10.00%
Assay (NT, on anhydrous basis) : 99.50 - 102.00%