Input interpretation
iron(II) oxide
Chemical names and formulas
formula | FeO name | iron(II) oxide IUPAC name | oxoiron alternate names | ferrous monoxide | ferrous oxide | iron(2) oxide | iron monoxide | oxoiron mass fractions | Fe (iron) 77.7% | O (oxygen) 22.3%
Structure diagram
Structure diagram
vertex count | 2 edge count | 1 Schultz index | 4 Wiener index | 1 Hosoya index | 2 Balaban index | 1
Basic properties
molar mass | 71.844 g/mol phase | solid (at STP) melting point | 1360 °C density | 5.7 g/cm^3 solubility in water | insoluble
Units
Solid properties (at STP)
density | 5.7 g/cm^3
Units
Thermodynamic properties
specific free energy of formation Δ_fG° | solid | -3.549 kJ/g molar free energy of formation Δ_fG° | solid | -255 kJ/mol specific heat of formation Δ_fH° | solid | -3.786 kJ/g molar heat of formation Δ_fH° | solid | -272 kJ/mol specific entropy S° | solid | 0.8491 J/(g K) molar entropy S° | solid | 61 J/(mol K) molar heat of fusion | 24.1 kJ/mol | specific heat of fusion | 0.335 kJ/g | (at STP)
Chemical identifiers
![CAS number | 1345-25-1 PubChem CID number | 14945 PubChem SID number | 24864959 SMILES identifier | O=[Fe] InChI identifier | InChI=1/Fe.O/rFeO/c1-2 MDL number | MFCD00016095](../image_source/7459672682872059963ac78a426f0f0d.png)
CAS number | 1345-25-1 PubChem CID number | 14945 PubChem SID number | 24864959 SMILES identifier | O=[Fe] InChI identifier | InChI=1/Fe.O/rFeO/c1-2 MDL number | MFCD00016095
Toxicity properties
short-term exposure limit | 10 mg/m^3
long-term exposure limit | 5 mg/m^3 (over 8 hours)