- InChI
- InChI=1S/Ca
- InChI Key
- OYPRJOBELJOOCE-UHFFFAOYSA-N
- Formula
- Ca
- SMILES
- [Ca]
- Molecular Weight1
- 40.08
- CAS
- 7440-70-2
- EA : Electron affinity (eV).
- ΔfH°gas : Enthalpy of formation at standard conditions (kJ/mol).
- IE : Ionization energy (eV).
- Pvap : Vapor pressure (kPa).
- S°gas,1 bar : Molar entropy at standard conditions (1 bar) (J/mol×K).
- S°solid,1 bar : Solid phase molar entropy at standard conditions (J/mol×K).
- Tboil : Normal Boiling Point Temperature (K).
- Ttriple : Triple Point Temperature (K).
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| EA | [0.02; 0.04] | eV |
|
| EA | 0.02 ± 0.00 | eV | NIST |
| EA | 0.02 ± 0.00 | eV | NIST |
| EA | 0.02 ± 0.00 | eV | NIST |
| EA | 0.04 ± 0.01 | eV | NIST |
| ΔfH°gas | 177.80 ± 0.80 | kJ/mol | NIST |
| IE | [6.00; 6.21] | eV |
|
| IE | 6.11 ± 0.00 | eV | NIST |
| IE | 6.11 | eV | NIST |
| IE | 6.00 ± 0.30 | eV | NIST |
| IE | 6.11 | eV | NIST |
| IE | 6.11 ± 0.00 | eV | NIST |
| IE | 6.08 ± 0.06 | eV | NIST |
| IE | 6.00 ± 0.30 | eV | NIST |
| IE | 6.06 ± 0.05 | eV | NIST |
| IE | 6.11 ± 0.00 | eV | NIST |
| IE | 6.10 | eV | NIST |
| IE | 6.11 | eV | NIST |
| IE | 6.11 | eV | NIST |
| IE | Outlier 6.21 ± 0.09 | eV | NIST |
| S°gas,1 bar | 154.89 ± 0.00 | J/mol×K | NIST |
| S°solid,1 bar | 41.59 ± 0.40 | J/mol×K | NIST |
| Tboil | 1757.00 ± 2.00 | K | NIST |
| Ttriple | 1112.90 ± 2.00 | K | NIST |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.00e-03; 99.99] | kPa | [864.15; 1755.15] |
The Yaw...
|
| Equation | ln(Pvp) = A + B/(T + C) | |||
| Coefficient A | 1.43468e+01 | |||
| Coefficient B | -1.60244e+04 | |||
| Coefficient C | -1.10230e+02 | |||
| Temperature range, min. | 864.15 | |||
| Temperature range, max. | 1755.15 | |||
| Pvap | 1.00e-03 | kPa | 864.15 | Calculated Property |
| Pvap | 0.01 | kPa | 963.15 | Calculated Property |
| Pvap | 0.08 | kPa | 1062.15 | Calculated Property |
| Pvap | 0.41 | kPa | 1161.15 | Calculated Property |
| Pvap | 1.51 | kPa | 1260.15 | Calculated Property |
| Pvap | 4.55 | kPa | 1359.15 | Calculated Property |
| Pvap | 11.69 | kPa | 1458.15 | Calculated Property |
| Pvap | 26.36 | kPa | 1557.15 | Calculated Property |
| Pvap | 53.58 | kPa | 1656.15 | Calculated Property |
| Pvap | 99.99 | kPa | 1755.15 | Calculated Property |
Mixtures
Sources
- Standard molar enthalpies of formation of hydroxy-, chlor-, and bromapatite
- Calorimetric studies and thermodynamic properties of liquid Ag-Ca alloys
- Standard enthalpy, entropy and Gibbs free energy of formation of "A" type carbonate phosphocalcium hydroxyapatites
- Thermochemical properties of two mixed alkali-alkaline earth metal borates with NLO properties for NaCaBO3 and Li4CaB2O6
- Thermodynamic stability of Ca3TeO6 determined by a solid electrolyte EMF method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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Take the time to validate and double check the source of the data.
Outlier This icon means
that the value is more than 2 standard deviations away from the
property mean.