- Formula: HI
- Molecular weight: 127.91241
- IUPAC Standard InChI:
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- IUPAC Standard InChIKey: XMBWDFGMSWQBCA-UHFFFAOYSA-N
- CAS Registry Number: 10034-85-2
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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Phase change data
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Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director
AC - William E. Acree, Jr., James S. Chickos
|Tfus||222.15||K||N/A||Beckmann and Waentig, 1910||Uncertainty assigned by TRC = 1.5 K; TRC|
Enthalpy of vaporization
|vapH (kJ/mol)||Temperature (K)||Method||Reference||Comment|
|19.8||238.||C||Giauque and Wiebe, 1929||AC|
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
|149.8 - 238.1||4.26854||939.994||-18.012||Stull, 1947||Coefficents calculated by NIST from author's data.|
Go To: Top, Phase change data, Notes
Beckmann and Waentig, 1910
Beckmann, E.; Waentig, P., Cryoscopic Measurements at Low Temperatures, Z. Anorg. Chem., 1910, 67, 17. [all data]
Giauque and Wiebe, 1929
Giauque, W.F.; Wiebe, R., THE HEAT CAPACITY OF HYDROGEN IODIDE FROM 15°K. TO ITS BOILING POINT AND ITS HEAT OF VAPORIZATION. THE ENTROPY FROM SPECTROSCOPIC DATA, J. Am. Chem. Soc., 1929, 51, 5, 1441-1449, https://doi.org/10.1021/ja01380a019 . [all data]
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]
Go To: Top, Phase change data, References
- Symbols used in this document:
Tfus Fusion (melting) point vapH Enthalpy of vaporization
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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