Ferrocene is an organic transition metal compound with aromatic properties. Its chemical formula is Fe(C5H5)2. It is an orange powder with camphor odor at room temperature. Melting point 172ºC-174ºC, boiling point 249ºC, above 100ºC can sublimate; Insoluble in water, organic solvents. It is chemically steady and poisonousless, not reacting with acid, alkail and ultraviolet. It doesn't decompose until 400°C. Mixed with Ferrocene, the diesel oil can be preserved for a long use.