- InChI
- InChI=1S/Ca.O
- InChI Key
- ODINCKMPIJJUCX-UHFFFAOYSA-N
- Formula
- CaO
- SMILES
- [O]=[Ca]
- Molecular Weight1
- 56.08
- CAS
- 1305-78-8
- Other Names
-
- calcia
- calcium monoxide
- caloxol CP 2
- caloxol W 3
- calx
- calxyl
- desical P
- rhenosorb C
- rhenosorb F
- PAff : Proton affinity (kJ/mol).
- BasG : Gas basicity (kJ/mol).
- ΔfH°solid : Solid phase enthalpy of formation at standard conditions (kJ/mol).
- IE : Ionization energy (eV).
- S°solid,1 bar : Solid phase molar entropy at standard conditions (J/mol×K).
- 1: Molecular weight from the IUPAC atomic weights tables.
Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| PAff | 1190.60 | kJ/mol | NIST |
| BasG | 1162.30 | kJ/mol | NIST |
| ΔfH°solid | -634.92 ± 0.90 | kJ/mol | NIST |
| IE | [6.50; 7.00] | eV |
|
| IE | 6.66 ± 0.18 | eV | NIST |
| IE | 6.66 ± 0.18 | eV | NIST |
| IE | 6.50 ± 0.30 | eV | NIST |
| IE | 7.00 ± 1.00 | eV | NIST |
| IE | 6.90 ± 0.15 | eV | NIST |
| IE | 7.00 ± 1.00 | eV | NIST |
| IE | 6.50 | eV | NIST |
| S°solid,1 bar | 38.10 ± 0.40 | J/mol×K | NIST |
Cheméo can also estimate Normal Boiling Point Temperature, Normal melting (fusion) point, Critical Temperature, Critical Pressure, Critical Volume, Enthalpy of formation at standard conditions, Enthalpy of vaporization at standard conditions, Standard Gibbs free energy of formation, Acentric Factor, Log10 of Water solubility in mol/l for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.
Similar Compounds
Find more compounds similar to calcium oxide.
Sources
- Cheméo Relay (1.0, beta) Beta: served but experimental, data-limited and below our cross-validation release bar; the Joback value is recommended where available.
- Thermodynamic equilibrium in the system H2O+P2O5+CaCO3 at 25 and 70 deg C: Application for synthesis of calcium phosphate products based on calcium carbonate decomposition
- Solubility study at high phosphorus pentoxide concentration in ternary system CaCO3+P2O5+H2O at 25, 35 and 70 deg.C
- Gibbs energy of formation of Ca7V4O17
- Experimental determination of the liquidus of the binary system (Cu2O + CaO) in air at temperature from (1050 to 1500) degC
- Experimental determination of diffusion and mass transfer of boron oxide in molten slag for metallurgical grade silicon purification
- Standard enthalpies of formation of Sr2CuO3 and Ca2CuO3
- Standard molar enthalpy of formation of Ca2[B4O7(OH)2]
- Hydrothermal synthesis, characterization and thermochemistry of Ca2[B2O4(OH)2]*0.5H2O
- Thermodynamics of BaNd2Fe2O7(s) and BaNdFeO4(s) in the system Ba Nd Fe O
- Thermochemistry of dicesium calcium tetraborate octahydrate
- Determination of Standard Enthalpy of Vaporization and Thermal Decomposition Reactions from Derivative Thermogravimetric (DTG) Curves
- Thermodynamic stability of Ca3TeO6 determined by a solid electrolyte EMF method
- NIST Webbook
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