|Molar mass||180.3 g/mol|
|Solubility in water||low|
|Solubility in other solvents||ethanol|
|Related compounds|| 2,2'-bipyridine|
| Except where noted otherwise, data are given for|
materials in their standard state
(at 25 °C, 100 kPa)
Infobox disclaimer and references
Phenanthroline is a heterocyclic organic compound. It can be a ligand in coordination chemistry; in this role it is abbreviated phen. Being a bidentate ligand, it is commonly used as a chelating agent for metal ions.
The complex [Fe(phen)3]2+ is used for the photometric determination of Fe(II). The complex, called "ferroin" has deep red colour. It is used as a redox indicator with standard potential +1.06V. The reduced ferrous form has a red colour and the oxidised form is light-blue.
In the related compound bathohenanthroline the 4 and 7 positions have a phenyl group.
- ↑ Belcher, R. "Application of chelate Compounds in Analytical Chemistry" Pure and Applied Chemistry, 1973, volume 34, pages 13-27.
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