Iron(II) oxide CAS 1345-25-1

Product Name:Iron(II) oxide CAS 1345-25-1/Ferrous oxide;C.I. 77489;Iron monooxide;Iron
CAS Number:1345-25-1
MF:FeO

Iron(II) oxide, also known as ferrous oxide, is an inorganic compound with the chemical formula FeO. It is identified by the CAS number 1345-25-1 and has a molecular weight of approximately 71.84 g/mol. This compound is characterized by its black powder form and is known for its applications in various fields, including materials science and cosmetics.
Chemical Properties
Molecular Formula: FeO
Molecular Weight: 71.84 g/mol
CAS Number: 1345-25-1
EC Number: 215-721-8
Iron(II) oxide crystallizes in a rock salt structure and is thermodynamically unstable below 575°C, where it can decompose into metallic iron and iron(III) oxide under certain conditions.
Physical Characteristics
Appearance: Black powder
Density: Approximately 5.7 g/cm³
Solubility: Slightly soluble in acids but insoluble in water and alcohol.
Applications
Iron(II) oxide is utilized in various applications, including:
Pigments: It is used as a dye in ceramics, glazes, and cosmetics due to its coloring properties.
Research: Employed in proteomics and other scientific research applications.
Construction: Used in heat-absorbing glass for buildings and automobiles.
Safety and Handling
Iron(II) oxide is classified as a hazardous material, and appropriate safety measures should be taken when handling it. It is important to refer to safety data sheets (SDS) for detailed handling and storage instructions.
In summary, Iron(II) oxide (FeO) is a significant compound with diverse applications and specific chemical properties, making it valuable in both industrial and research contexts.