selenium
- Formula: Se
- Molecular weight: 78.96
- IUPAC Standard InChI: InChI=1S/Se
- IUPAC Standard InChIKey: BUGBHKTXTAQXES-UHFFFAOYSA-N
- CAS Registry Number: 7782-49-2
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Selenium atom
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Phase change data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tc | 1766. | K | N/A | Rau, 1974 | Uncertainty assigned by TRC = 1.76 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Pc | 271.551 | bar | N/A | Rau, 1974 | Uncertainty assigned by TRC = 2.7133 bar; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ρc | 15.64 | mol/l | N/A | Rau, 1974 | Uncertainty assigned by TRC = 0.0156 mol/l; TRC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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| Temperature (K) | A | B | C | Reference | Comment |
|---|---|---|---|---|---|
| 629. to 953. | 6.33714 | 6588.125 | 86.633 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Rau, 1974
Rau, H.,
Vapour composition and critical constants of selenium,
J. Chem. Thermodyn., 1974, 6, 525. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tc Critical temperature ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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