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iron(II) oxide

Input interpretation

iron(II) oxide
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%
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
Structure diagram
vertex count | 2 edge count | 1 Schultz index | 4 Wiener index | 1 Hosoya index | 2 Balaban index | 1
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
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
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)
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
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
short-term exposure limit | 10 mg/m^3
long-term exposure limit | 5 mg/m^3 (over 8 hours)
long-term exposure limit | 5 mg/m^3 (over 8 hours)